Credit: WireImage
+ Just a day after welcoming their new twins, Mariah Carey and Nick Cannon renewed their wedding vows. All together now: "Awwww!" (PopEater)
+ Sounds like Justin Bieber is entering his rebellious phase. The singer was reprimanded on a flight to Melbourne, Australia, this weekend for allegedly standing during takeoff. (OneTravel)
+ Check out photos of pretty much everyone ever, including Rihanna, Taylor Swift, Beyoncé, Madonna, Kanye West and more, at the 2011 Costume Institute Gala in NYC last night. (The Fab Life)
+ Cutie Selena Gomez has been tapped to host 2011's MuchMusic Awards in Canada this summer. Lady Gaga will also be on hand. (Celebuzz)
+ Will they or won't they? 30 Seconds To Mars doesn't know if they'll be recording new material any time soon. "You never know what's going to happen," frontman Jared Leto confessed. (MTV News)
+ Gwen Stefani joined Prince onstage during his Los Angeles concert this past weekend. Umm, coolest collabo ever? (Neon Limelight)