POTW: Janet Jackson, 50 Cent, Lady Gaga, Alicia Keys
Janet Jackson FOX

A catsuit-wearing Janet Jackson brought the heat back to the "American Idol" stage during the finale, 50 Cent lost 50 pounds for a movie role, Lady Gaga got her caffeine fix while drinking coffee in the back seat of a car, Katy Perry smooched on fiancé Russell Brand, Diddy and Dr. Dre introduced the "Diddybeats" headphones, Alicia Keys hid her baby bump and Lee DeWyze celebrated his Idol win. It all happened this week and we've got the pics to prove it.

SEE THE PHOTOS OF THE WEEK | POTW MAIN PAGE

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


1. Stone Temple Pilots Exclusive Album Debut

2. 'Glee' Stops the Show at No. 1, Stones Come in Second On Billboard 200

3. 'American Idol' Finale: 10 Things You Didn't See on TV (Night 2)

4. Poll: David Archuleta Voted Best "American Idol" Ever

5. Summer Album Preview 2010