BBMAs 2018

Photos of the Week: Katy Perry, Vampire Weekend, Adam Lambert, Ke$ha

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Russell Brand/ Katy Perry

Katy Perry flashed the rock given to her by Russell Brand. Simon Cowell quit "American Idol" and announced the launch of "X-Factor" U.S. Vampire Weekend rocked London, Christina Aguilera hopped on a motorcycle, and Adam Lambert and Ke$ha hit the town hard. It all happened this week, and we've got the pics to prove it.

SEE THE PHOTOS OF THE WEEK | LAST WEEK'SPHOTOS


News of the Week: Billboard's 5 Most Popular Stories


1. Elvis Presley's 75th Birthday: A Tribute In Photos & Songs

2. Ke$ha Ends Susan Boyle's 'Dream' on Billboard 200

3. American Idols: Then & Now Photos

4. 'Idol' Premieres, Victoria Beckham Faces Off With Smon Cowell

5. Jay Reatard Found Dead In Memphis Home