Fat Joe did everything right — or so he thought. But even with all of his good intentions, the Terror Squad leader has to turn himself in at the end of the August to serve four months on tax charges.

"I accept responsibility; I'm not copping out or saying that it wasn't my fault," the Don Cartagena told MTV News on Monday in New York.

The rap star pleaded guilty to failure to file federal income taxes on approximately $1 million in income from 2007 to 2008 last December and points to a faulty accountant, whom he said mishandled his monetary affairs. Joe said the first red flag came when he went to lease a car, but instead found out his mortgages and various bills weren't paid.

"My credit was just incredible; I could've got the whole building on credit," Joe said, admitting he assumed that his money man was properly handling his bills. "I'm wiring him money to pay for all my mortgages, cars, my taxes."

The Bronx, New York MC says he called his then-accountant while he was still at the dealership and though the bills were unpaid, the accountant had enough cash on hand to rectify the situation in 24 hours. "Immediately I was like this is a Ponzi scheme," he said.

"I went and got a new accountant the next day and we realized that he ain't file my taxes." Fat Joe said it was he and his new accountant who alerted the government of his unfiled taxes and contends that he immediately worked to pay the money back. ...

Make no mistake: British folk rock band Mumford & Sons know they have a certain reputation — and they're lampooning that hipster, flannel-clad image in their latest music video for "Hopeless Wanderer," the fourth single off of their 2012 album, Babel.

The clip, which as of press time was nearing 2 million views on YouTube, following its August 4 debut, features actors Jason Sudeikis, Jason Bateman, Ed Helms and Will Forte as a faux Mumford & Sons, strumming and singing in a sun-dappled field just as earnestly (perhaps even more so) as the real McCoy.

With the Internet crazed over the clip, MTV News reached out to director Sam Jones, helmer of the VMA-winning video for "Walk" by the Foo Fighters, to find out all the secrets from set.

The "Hopeless Wanderer" could have been a dog.
Jones originally pitched two treatments for the video: one featuring actors and one starring a pooch.

"The other one I wrote was about a dog, actually," he said. "Like, more of a French film about a dog, who's kind of lost his owner. The two ideas couldn't have been more far apart, and I think that when I wrote the one about the actors I was like, 'They're never going to pick this.' So I didn't really have specific actors in mind, and then they called and they said, 'Oh, we love the one with the actors.' And I was like, 'Oh great.' "

The video was cast in about 30 minutes.
Despite his trepidations, the parody band came together rather swiftly and seamlessly. Jones' ...

Harrison Ford is a rare breed among the Hollywood royalty, not just for his unbelievable resume that includes "Star Wars" and "Indiana Jones," but for his interviews. The legendary leading man doesn't mince words while doing press, and he doesn't mind cracking a dry joke.

MTV News Josh Horowitz became very intimate with Ford's style during a 20-minute interview at San Diego Comic-Con about his upcoming movie, "Ender's Game," and to help you fully appreciate the awesomeness of his interview prowess, here are some of Ford's very best quotes from the interview.

1: 20 — "How about 'How's your day going?' just to start?"
When Ford shows up after his producer, Roberto Orci, Josh dives right back into the interview, something that catches the actor off guard.

2:25 — "Thrilled to be here. I'm sedated, but I'm glad to be here."
Ford finally gets to answer the question, and his response does not disappoint.

2:40 — "There was money involved."
Explaining why he joined "Enders Games," after Josh suggested that it had to do with Orci.

5:50 — "It was, all together, attractive to me and the fact that it's the kind of movie that people like to get out of the house to see on the big screen is very important to me."
It's refreshing to hear the star of such classic movies to champion the theater experience. Here, Ford explains what made him consider working on "Ender's Game."

7:30 — First phone call

7:51 — "What were I saying?"

8:14 — First text message

8:20 — "It sounds like a telephone"
Josh inquires about what kind of ringtone his ...

Earlier this summer, Kings of Leon drummer Nathan Followill told MTV News that, on the band's upcoming Mechanical Bull album, they were getting back to the business of

"There was no pressure this time around; we weren't coming off the heels of a multi-Grammy winning, multi-million selling record, it was 'OK, we can make the kind of record we want to make, one that will be fun for us to play,'" he said. "When it stops being fun, that's when either the music suffers, or the live show suffers. It was fun just to get back in there and everybody have a creative say-so, and just start from scratch. And the result is this new record."

The result is also the new video Bull's first single, "Super Soaker," which premiered Tuesday (August 6), and almost certainly shatters the record for "Most times this band has smiled in a music video."

Yes, "Super Soaker" shows the Kings actually enjoying their day jobs — a marked departure from their dour Come Around Sundown era — as they show up at what appears to be a 1950's sock hop, plug in, and play. More often than not, they stare directly into the camera, and, in-between the occasional crack up, thrown themselves headlong into their latest stomper. Notoriously shy frontman Caleb Followill smiles throughout. Oh, and of course, they're surrounded by a gaggle of good-looking girls, as has always been their way.

Sonically and visually, the entire thing harkens back to the retro-obsessed days of the early aughts, when bands the like Kings and ...

Less than 24 hours after being booked and released
 in connection with a hit-and-run incident, Chris Brown tweeted on Tuesday (August 6) that he's fed up and and might retire from music soon.

"Don't worry mainstream America. After this X album, it'll probably be my last album," Brown wrote. The singer posted the comment a day after he spent less than an hour at the Van Nuys, California, jail on Monday. According to online records from the Los Angeles County Sheriff's Department, Brown, 24, arrived at the Van Nuys jail at 2:40 p.m., was booked two minutes later and then released at 3:22 p.m. with no bail.

Las month, a judge revoked Brown's probation from his 2009 assault on former girlfriend Rihanna in connection with the hit-and-run case. He is free pending an August 19 hearing in the probation matter, but is facing up to four years in jail
 if he is found in violation.

A spokesperson for Brown could not be reached for comment at press time about the retirement talk, but the singer appeared to be reacting to the ongoing fall-out from the Rihanna incident. "Being famous is amazing when it's for ur music and talent," he wrote. "I'm tired of being famous for a mistake I made when I was 18. I'm cool & over it!"

The latter comment was retweeted more than 10,000 times within an hour of posting, with many followers begging Brown not to throw in the towel. "@chris brown you're one of the strongest person I've never known please don't ...

Beyoncé had already performed a pair of concerts at Brooklyn's Barclays Center, with nary an appearance by her husband — and former Brooklyn Nets stakeholder/eternally proud Brooklynite — Jay Z ... but all of that changed Monday night, at the third and final "Mrs. Carter" show date at the sparkling new venue.

Because, midway through a brash rendition of Jay made an unannounced cameo on the Barclays stage, and, as Bey took a seat onstage — and the sold-out crowd went appropriately apesh — he delivered an impromptu performance of the Magna Carta track "Tom Ford."

Beyoncé didn't stay seated for long, though, rising to her feet to deliver backing vocals on the song — it's one of several Magna Carta tracks where she's credited as "Third Ward Trill" — then planted a kiss on her hubby's cheek. The two then slowdanced out of the spotlight, Jay departed with a wave, and Bey went right back into "Bow Down" without skipping a beat.

Jay, of course, christened the Barclays last year with a run of eight shows, and brought out Beyoncé on the last night.

Monday's date marked the end of the first leg of Bey's massively successful "Mrs. Carter" tour. She'll do a run of festival shows in the UK (and headline one night of Philly's Made in America festival at the end of August) before taking the show to Latin America, Australia and New Zealand. But, she'll return to the states at the end of the year for one more run of "Mrs. ...