Madonna covers Lady Gaga and more!

1.) Footage of Madonna's concert rehearsal leaked a mashup of her "Express Yourself" with Lady Gaga's "Born This Way," and it continues to fuel rumors that the Queen of Pop's taking a dig at Mother Monster supposed copying. It's the classic "what came first": the chicken or Gaga in the egg. (MTV News)

2.) We can't shake the uncanniness of this spot-on resemblance in these photos of OutKast's Andre 3000 portraying Jimi Hendrix for the infamous guitar hero's biopic. (Rap-Up)

3.) Chris Brown's unfortunate Fortune album delays had people questioning if it'd ever see a release, but now we've got a track list along with an official drop date of June 29. (Pop Dust)

4.) In case you're not sold on her yet (what's wrong with you?), stream two of Azealia Banks' new tunes from her forthcoming 1991 EP: "1991" and "Van Vogue." (Pretty Much Amazing)

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

5.) Don't worry, y'all -- Britney Spears promises that those rumors of her walking off the set of "The X Factor" are fake! Now, can we get back to admiring how gorg she looks these days? (Neon Limelight)

6.) Hot dude update: The Killers share the title for their fourth studio album, Battle Born, and the Las Vegas rockers are looking to conceive the finished record by this fall. (NME)

7.) If you're in the market for Elvis Presley's former crypt, you're in luck: It's for sale! We live in a very strange world. (Rolling Stone)

8.) Even Michelle Obama idolizes Beyoncé (just in case you needed even more proof of "who runs the world")! (Vibe)

9.) Check out these very unique Destiny's Child remixes including a mashup of Nirvana's "Smells Like Teen Spirit" and the ladies' "Bootylicious." Kurt Cobain would be so proud? (BuzzFeed)

10.) Christina Aguilera is back and recording her fifth studio album, and she's collaborating with famed producer/mastermind Darkchild! (That Grape Juice)