+ Katy Perry's highly anticipated video "E.T." featuring Kanye West will premiere on Thursday, March 31, at 7:53 p.m. ET exclusively on MTV and MTV.com. Fans should stay tuned for an in-depth interview with Katy after the video. (MTV News)
+ Britney Spears has signed on to cohost the annual Los Angeles music festival Wango Tango, alongside Ryan Seacrest. Performers include Ke$ha, Jennifer Lopez and Selena Gomez, among others. (The Hollywood Reporter)
+ More Britney news -- the trailer for the MTV special "Britney Spears: I Am The Femme Fatale" premieres tonight on MTV! Get an intimate peek at the singer's life, her fans, and...her Starbucks order. (MTV News)
+ Beyoncé has dropped her father, Matthew Knowles, as her manager. No worries, girl -- you're a "Survivor." (TheFABlife)
+ Lady Gaga had a low-key celebration for her 25th birthday yesterday at a Los Angeles-area Mexican restaurant. But she did get up and sing with the mariachi band. Of course. (PopEater)
+ Grab a seat, Little Monsters. Lady Gaga's "Judas" lyrics have leaked...or have they? No official word on whether or not these are real, but we still had to share! (ONTD)