Austin Mahone is ready for his close-up! And thanks to Big Time Rush, he's getting it. The VMA-nominated singer is slated to make a cameo on the season finale of BTR's Nick sitcom airing Thursday (July 25).

While he admitted his role wasn't challenging, he did get some on-the-job training from the foursome. "I had such a great experience filming with Big Time Rush. I play myself so it wasn't too difficult but it was my first time doing any sort of acting, so it was a little scary!" he told MTV News in a statement about the appearance.

"The guys and the crew were so awesome and made the shoot as easy as possible," he added. "It was a really fun thing to do and BTR even taught me some acting tricks so I'll be ready for my next role!"

In addition to a top hat-sporting Mahone, the special airing at 8 p.m. E.T. will also feature appearances from Nick Cannon, Alexa Vega, Karmin, Mindless Behavior and Fabio. "This episode is a fitting ending to season four," BTR's Kendall Schmidt added. "We always try to go big, and we worked hard to make a finale that will make a lasting impression."

Until Mahone pops up in another acting project, his schedule seems pretty jam-packed. He's up for an Artist to Watch, Presented by Taco Bell Moonman at the 2013 MTV Video Music Awards for his Colin Tilley-directed video. This year's VMAs are taking place on August 25 live from the Barclays Center in ...

After watching months of erratic behavior
 that drew concern from friends and fellow stars, Amanda Bynes' parents appear poised to step in and help their daughter get back on track.

Following Bynes' involuntary admission on Monday to a California hospital on a code 5150 72-hour involuntary psychiatric hold
, Lynn and Rick Bynes are reportedly due in court on Friday morning to request that a judge grant a temporary conservatorship. The legal maneuver, similar to what Britney Spears' father enacted
 for the pop singer during a difficult stretch in her life in 2008, would allow the Bynes' to gain control over the 27-year-old actress' financial and personal affairs for 30 days, according to a report from E! News.

Read Everything We Know So Far About The Incident That Sent Bynes To The Hospital.

The move to conservatorship comes in light of a strange incident in Thousand Oaks, California, on Monday night when Bynes lit a fire
 on the driveway of one of her parent's neighbors. Bynes was not arrested in the case and is not expected to be charged
. She reportedly set fire to a gas can, as well as her pants during the incident, which also resulted in her small dog getting doused with gasoline.

According to E!, if a judge grants the conservatorship, Bynes' parents will be legally in charge of her estate for as long as the court deems it necessary. Though the initial conservatorship would be for only 30 days, if probable cause is found to renew it, the conservatorship could be extended ...

From her bloody good performance of to her gender-bending take on — and let's not forget the Meat Dress — Lady Gaga has had no shortage of memorable moments at the MTV Video Music Awards over the years ... and now, she's set to add to that legacy at the 2013 VMAs.

Gaga will make her triumphant return to the stage at this year's show, performing the new single off her hotly anticipated ARTPOP album before a star-packed crown at Brooklyn's Barclays Center ... not to mention millions of fans watching around the world. She's the first performer announced for the big show, which airs live on August 25 at 9 p.m. ET/PT. Additional performers will be announced at a later date.

Earlier this month, Gaga thrilled her Little Monsters by announcing she was fully recovered from hip surgery and ready to roll, and at the VMAs, she'll be performing ARTPOP's debut single for the first time. The still-untitled track is set to be released on August 19, and ARTPOP is due on November 11.

In addition to her string of stirring performances and outrageous fashion statements at the VMAs, Lady Gaga also taken home an armload of Moomen over the years — 13 in total — including Best New Artist and Video of the Year for "Bad Romance." And in celebration of her forthcoming performance, MTV Hits will feature an hour-long block of Gaga's iconic videos and musical moments today from 3-4 p.m. ET/PT

Justin Timberlake and Macklemore & Ryan Lewis lead the ...

When it comes to showing their appreciation for Justin Bieber, a cadre of rappers out there are following Beyoncé's advice: "If you liked it you shoulda put a ring on it." Allow MTV News to give you a peek into the pop star's jewelry box.

Big Sean's Friendship Ring
If you think friendship rings are best left to 5th graders, then you've probably never been offered the glory that is a Rolex ring — the very same piece of pinky bling that Big Sean gifted to the Biebs earlier this summer.

After Bieber hooked up with Sean on "As Long as You Love Me," the rapper decided to make his appreciation official.

"After he put me on his album and introduced me to a lot of his fans, I felt like, 'Yo, man, just to show my appreciation,' I gave him the Rolex ring," Sean explained to MTV News. "It ain't no thing; it's really what bosses do — we give each other gifts."

He told us that it was the first ring he bought after he started making money.

Bieber's manager Scooter Braun recalled the exchange to MTV News as well. "[Big Sean] said, 'I know you said you liked [my ring], and I want to say thank you for involving me in the process and being a part of this, and I want you to have the ring.' And he took it off, and Justin put it on and it was a real genuine moment. They're friends."

Let's hope friends — just like the diamonds encrusted in Bieber's new bling — are forever, ...

Yesterday, Paramore's Hayley Williams told MTV News that the band's upcoming upcoming North American tour would be

"We always want to outdo whatever we've already done ... this is a tour that we've been dreaming of for a little while, and we're really excited to make it happen," she said. "We're going to put in a lot of work to make the show fill up these venues and be really special."

In part; that means Paramore are tweaking their setlist and upping their production values — something bassist Jeremy Davis is handling — though they're not stopping there. Williams and her bandmates also hand-picked the acts that will open for them on the "Self-Titled Tour," tapping iconic Canadian outfit Metric and ebullient pop-rockers Hellogoodbye to join them on the bill.

And, as you can probably guess, Paramore didn't take those decisions lightly. On a tour this huge — and this important — they went with bands that can not only fill a room, but make the kind of music that inspires them on a personal level.

"It just sort of depends on the atmosphere we want to create. Our new album represents a lot of things to us but most of all, movement," Williams said. "Whether that means moving forward, moving on, or just moving your body, it's all about liberating yourself and becoming a freer version of who you've always been. So the bands that we are bringing are bands that we feel represent those kind of things too.

"Metric makes the kind of music that makes ...

Birdman takes his music seriously — and why wouldn't he? The Cash Money co-founder and CEO turned an independent New Orleans record label into a rap powerhouse, thanks to raw, unapologetic rhymes from acts like B.G., Juvenile and, of course, Lil Wayne.

What's more, the #1 Stunna feels so strongly about his current artists and their music that on Wednesday's episode of "RapFix Live," he revealed he'd considered a boycott against Mountain Dew and Reebok, when the companies dropped Wayne and Rick Ross, respectively, over controversial lyrics. (While Ross is not signed to Cash Money, he and Birdman are close friends and frequent collaborators.)

"Really, we could've reversed that [termination of endorsement deals] because my whole take was, 'Since they wanna clown, I can clown and group all my people up.' But on the respect I have for Swizz [Beatz, a Reebok partner], that's why I didn't clown," Birdman told Sway. "I could've put all my people together and say, 'Now my culture and my community, we're not supportin' y'all.' "

Back in April, Reebok broke off their deal with Rick Ross after he spit some lyrics on Rocko's "U.O.E.N.O." that conjured up images of rape for some listeners. The sneaker deal was one that hip-hop producer and Cash Money friend Swizz had helped to broker. PepsiCo.-backed Mountain Dew also severed ties with Wayne after outcry over his sexual reference to Civil Rights icon Emmett Till on Future's "Karate Chop."

Both Ross and Wayne expressed remorse after their respective incidents. And on Monday, J. Cole became the latest ...

Almost three days after being put on a psychiatric hold
, Amanda Bynes could be released from a California hospital on Thursday evening (July 25).

After setting a fire on a stranger's driveway
 in Thousand Oaks, California on Monday night, the actress was taken in under a 5150 hold, a California code that allows doctors or law enforcement officials to detain a person involuntarily for 72 hours if they are deemed a danger to themselves or others or display a grave disability that renders them unable to provide for their own food, clothing and shelter.

Take A Look At Amanda Bynes: Then And Now.

But what does it feel like to be held on a 5150? MTV News spoke to Dr. Jody M. Rawles, a psychiatrist and the Vice Chair of Clinical Affairs in the psychiatry department at the University of California Irvine for some insight into the three-day hold.

Rawles, who does not have first hand knowledge of the Bynes case and was speaking in general terms about his extensive experience with 5150 cases, said emergency room physicians, psychiatrists, police officers and some social workers are among those who have the ability to request a hold. "If you are setting fires on someone else's property and are disorganized and give answers to questions that don't make sense, a peace officer might put in for a 5150 on all three [criteria]," said Rawles, who runs the acute inpatient unit at UC-Irvine.

The 72 hours begins as soon as the officer writes the 5150 request, after which the patient is transported to an emergency ...