Countless readers have already fallen in love with Hazel Grace Lancaster — the spunky, cancer-stricken heroine at the center of John Green's beloved YA novel, "The Fault In Our Stars" — but it's high time that fans learn to love Esther Earl.

In 2010, at 16 years old, Earl's four-year battle with thyroid cancer came to an end, but not before she'd made an indelible mark on author Green. A witty and razor sharp nerdfighter who worshipped Harry Potter and aspired to be an author herself, Earl developed a close relationship with YouTube phenom Green after a chance encounter at LeakyCon '09. Green, a former children's hospital chaplain, dedicated his 2012 novel to Earl, and those closest to the late teen say that much of Hazel's voice is undeniably Esther.

"The wicked sense of humor that [the characters] have ... That was so Esther," her father, Wayne Earl, told MTV News, recounting Hazel's first exchange with Gus as a cigarette dangled from his lips. "All I could think of was how much Esther would have loved these characters. In real life, she would have hung out with them."

On Tuesday (January 28), Penguin Group will release a collection of Esther's hand-written journals, personal family photographs and accounts from Esther's parents and close friends, penned during the last two years of Esther's life. The first pages of "This Star Won't Go Out" feature an introduction by Green.

" 'The Fault in Our Stars' is a novel, but if you want to know the real story behind ...

Austin Mahone is ready to go back in time when he stops by this spring.

The 17-year-old singer will not only act when he makes a cameo on the CBS sitcom, which stars "Arrested Development" actor Will Arnett, but he's also going to bust out in song. During the episode, dubbed "Bahama Mama," Mahone will play the teen version of Adam (Nelson Franklin) in a flashback scene. The adult version of Adam is Arnett's brother-in-law on the show, which also stars former "Glee" actress Jayma Mays as Arnett's sister and Franklin's wife.

And judging from this exclusive photo, Mahone will be going dorky chic for his appearance, wearing thick-rimmed glasses and a varsity jacket. He also somehow ends up in a van, decorated with beads and various accessories.

Mahone previously appeared on Nickelodeon's "Big Time Rush" in 2013, a cameo he hoped would prepare him for future acting gigs. "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!" he said in a statement last July.

Not enough Mahone for you? He is also prepping the release of his debut album. He dropped his new single, , earlier this month.

Forget about the 2014 Grammys... now that we know who won — congrats Daft Punk! — they're already passé.

Instead, let's talk about next year's awards, which will totally be better, and not just because they will contain 200 percent more Beyoncé (four minutes of onstage "grab-ass" just isn't enough!) Thanks to the Recording Academy's rather odd eligibility requirements, a whole bunch of albums released over the past few months didn't make the cut for the 2014 Grammys ... which means it's game on for the 2015 ceremony.

In fact, next year's Grammys are already shaping up to be one for the ages, with the biggest names in the business set to battle it out on the big stage. So why should you have to wait until next February to find out who will come out on top? Here are our w-a-a-y too early picks for the 2015 Grammys.

Beyoncé, Beyoncé: Her game-changing, top-secret album probably would have been a lock for an Album of the Year nod even if it wasn't a commercial success ... but when you factor in its record-setting sales, well, there's no telling how many nominations she'll nab.

Record and Song of the Year also seem like no-brainers for Bey, and she should also continue her domination of the R&B categories, too. And given that Beyoncé is also a visual album, expect her to rack up video and film nominations too. It wouldn't surprise if she's the most-nominated artist at next year's show.

Eminem, The Marshall Mathers LP 2: First single "Berzerk" was released ...

There are certain shows that seem to invite comparison to real life. "Game of Thrones," not so much. "Girls," absolutely. Professional TV critics have their chance to recap and analyze the show every week, but who has more authority to talk about a show about being a grown-ass woman in New York City than, well, grown-ass women in New York City?

With that in mind, MTV brings you Girls on "Girls," a column space we lend to the aforementioned females of the Big Apple to react to the week's episode of "Girls." And this week, well, it's a real doozy of an episode to react to. There were dead turtles, dead editors and dead hearts (Hannah) galore in Sunday night's episode, "Deep Inside."

This week, 37-year-old Jenni Miller, a writer who has lived in Manhattan's East Village since 1998, took the floor to tell us what's what when it comes to "Girls."

Are You A Girl?
I'm a woman, but I want to flip a table when someone calls me ma'am. I also like lady, chick, gal, girl, dame, etc.

Do You Relate To 'Girls' In General?
Um, not really? My 20s were pretty sh---y in an entirely different way. (Ladies, being over 30 rocks.)

Are you a Hannah/Marnie/Shosh/Jessa/Charlotte/Carrie/Whatever?
No.

What's Your Baggage?
I mean.

What Is A Moment From Last Night's Episode That Felt Like Your Life?
I would 100 percent believe a story like the one about the imaginary dying cousin.

And Something You'd Never Do That Happened?
I wouldn't tell someone else how their life is going to fall apart. Also not even ...

MGK is a wild boy, and while there really hasn't been a clear-cut explanation for his rambunctious behavior, we think it may have something to do with the movies he watched as a kid.

"'American Pie' is the ultimate high school movie," the Bad Boy rapper told the crew at MTV's a new 60-minute 1990s and 2000s homage kicking off on February 1 at 2:30 p.m. ET.

Beginning on Monday (January 27) through Saturday, February 1, viewers of MTV's afternoons will be treated to a collection of hilarious "Retromania" segments that will air in between the network's programming line-up, including the fan-favorite series "Run's House." The week will culminate with the one-hour special, "Retromania: Hip Hop," on Saturday, February 1 at 2:30 p.m. ET/PT on MTV. Everyone from 2 Chainz to Mac Miller and the Backstreet Boys to One Direction are all in on the action.

To kick things off, MGK will reenact the famous pie scene from the original 1999 "American Pie" film, where actor Jason Biggs (as Jim Levenstein) makes sweet love to his mother's homemade apple pie.

"I wanna recreate this scene to basically show all the young kids of America what Jim had showed me: You gotta practice, and a pie is a good way to start," the Laced Up MC says in a preview clip that will air on MTV at 11 p.m. ET.

If you didn't have the patience to sit through all three and a half hours of the Grammy Awards telecast on Sunday night (or, maybe you enjoyed it so much that you still want to recap), MTV News did you a solid by condensing the highlights into one minute.

Of course, all great things these days either begin or end with Beyoncé, and who are we to mess with the natural order of things? The show opened with Bey werkin' it out on a chair, then Macklemore & Ryan Lewis continued their sweep by scooping up the award for Best New Artist.

Katy Perry summoned Juicy J and her entire coven for a performance of "Dark Horse," while Lorde went all vampy with black fingernails to perform Song of the Year, "Royals. Kendrick Lamar and Imagine Dragons all but shut down the show with their mash-up of "m.A.A.d city" and "Radioactive."

Blue Ivy didn't make it to the Grammys, but Jay Z took home a new for her, and Steven Tyler and Yoko Ono really jammed out to Daft Punk's performance of "Get Lucky" before The Robots took home trophies for Record of the Year and Album of the Year.

Finally, Madonna showed up just in time to join Macklemore & Ryan Lewis for a performance of "Same Love," during which Queen Latifah married 33 couples, live!

See all of it in the video above.

This is not a dress rehearsal: "Pitch Perfect 2" is happening. Put your hands in the middle, and on three, say, "AHHHHH!"

The sequel to the 2012 sleeper a cappella hit "Pitch Perfect" is a go, according to The Hollywood Reporter. Elizabeth Banks, who produced the first film and played a small but memorable part in it, will direct.

But wait, the news just keeps getting more aca-amazing: Stars Anna Kendrick and Rebel Wilson are likely to return for act two, according to THR's sources. (A quick check of Kendrick's Twitter shows that she'll probably be too busy nursing the double whammy of her Grammys hangover and the aftershocks of meeting Beyoncé to be turning any pirouettes in the immediate future, but we trust her to pull it together.)

This won't be a "Bring It On 2: All or Nothing" situation — in addition to the talent and production team returning, screenwriter Kay Cannon will be back to write the script. (Hopefully with 100 percent fewer projectile vomit jokes this time around, please. We've had enough.)

This news is fantastic for those of us who've been practicing our mermaid dancing and "Breakfast Club" fist pumps for nearly two lonely years while co-stars such as Skylar Astin have pitched ideas such as a budding K-Pop career for the sequel. Now that the sequel is for real, we can start building our wishlist for the soundtrack.

Demand #1: We must witness Rebel Wilson's version of Ke$ha's "Timber." Please. Please, aca-gods, please make it happen.