10 Things To Know Now: Britney Spears' Top-Secret Video, Demi Lovato Covers Teen Vogue + Justin Bieber's A Phish Fan?

Britney Spears is working on a secret video project, Demi Lovato looks GORG on the cover of Teen Vogue, and more!

1.) Britney Spears shared a photo from what she called "a top secret project," y'all! Could it be a new music video? GIMME MORE ANSWERS, BRIT! (Pink's The New Blog)

2.) Demi Lovato's Teen Vogue cover is just another friendly reminder that the "Give Your Heart A Break" singer is probably the most photogenic person to exist maybe EVER. (MTV Style)

3.) Looks like Justin Bieber's got Phish Fever! The singer included three of the band's songs in his recent Fresno, California concert. And now we wait for the tie-dye shirts and hemp necklaces to arrive... (UPROXX)

4.) OMG, GLAMBERTS! Adam Lambert made his acting debut as a vampire on ABC Family's "Pretty Little Liars." Spoiler alert: He dominates it like everything else he does. (Popdust)

Check out the rest of this week's 10 Things To Know Now after the jump!

5.) Christina Aguilera told us what we can expect from her American Music Awards performance -- she promised to bring her Lotus album cover to life... yes, that cover where she's pretty much naked. Annnd we're officially intrigued. (MTV News)

6.) Check out Calvin Harris' new 18 Months album preview and track list. The record officially drops Oct. 29! (Pop On And On)

7.) Eminem and the cast of "8 Mile" reunited for the film's 10-year anniversary. Go ahead and "Lose Yourself" in all the nostalgia, guys. (VIBE)

8.) Kelly Rowland unveiled a black-and-white promo photo for her new album to drop next year. In case you're wondering: Girl STILL looks flawless. (That Grape Juice)

9) One Direction and New Orleans Saints quarterback Drew Brees teased a 16-second clip from their upcoming Pepsi commercial. Brits doing an American football commercial -- it's official, 1D has taken over EVERYTHING.  (PopCrush)

10.) The Killers unveiled their new single, "Miss Atomic Bomb." Check out the Marilyn Monroe-like vintage-friendly artwork for the record. (Facebook)

Photo credit: Colin Douglas Gray/ Getty Images