Dev's got her own MTV show, Justin Timberlake is making new music and more!

1.) Learn every single possible thing you can about Dev's life by watching her MTV special tonight. Dev walks us through her journey to stardom and her discovery that she was pregnant. (MTV)

2.) 50 Cent released his "The Lost Tape" mixtape featuring collabos with Eminem, Snoop Dogg, and 2 Chainz. The best part: It's streaming for free. (Vibe)

3.) Smelling like Britney Spears is twice as easy now that she combined both of her popular perfumes into one bottle. Spritz away, y'all! (MTV Style)

4.) Jay-Z announced his continued world domination the preliminary lineup for his first-ever Made In America festival scheduled for Philadelphia Sept. 1 and 2. The list includes Skrillex, Pearl Jam, Passion Pit, Santigold and more. (Pretty Much Amazing)

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

5.) First Tupac, then Queen's Freddie Mercury, and now John Mayer -- dude's getting his own hologram aptly called Tron Mayer. Technically, it's a joke from the spoof masters over at College Humor, but knowing John, you never know. (Huffington Post)

6.) A snippet of Ke$ha's new song rumored to be titled "Woo Woo" popped up, and judging by the short sneak peek, we're positive it will be wooping up everyone's summer playlist. (Pop On And On)

7.) Katy Perry admitted on "Ellen" that her "Katy Perry: Part Of Me 3-D" movie includes footage of Katy and Russell Brand's divorce announcement. Let's all just mentally prepare now and B.Y.O.T (Bring Your Own Tissues). (Hollywood Life)

8.) The anti-Lady Gaga situation in Asia is getting pretty serious, but that won't stop Mother Monster from putting on her show! (Idolator)

9.) Kelly Clarkson joins the singing competition show bandwagon and chats about her new gig on "Duets." Based on Kelly's own stardom credentials, we couldn't think of a better person for the job! (MTV News)

10.) Justin Timberlake's FINALLY making new music! He's composing the soundtrack for the film "The Devil and the Deep Blue Sea." We're reaaallly hoping it sounds something like FutureSex/LoveSounds. PLEASE, JUSTIN?!? (The Playlist)

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