Jason Derulo joined Dave Berry & Lisa Snowdon in the studio... and of COURSE he showed off his arms! This image appears in the gallery:AAA Pass At The Ready? Check Out The Best Backstage Moments From Capital's Jingle Bell Ball With Coca-Cola 41. Jason Derulo joined Dave Berry & Lisa Snowdon in the studio... and of COURSE he showed off his arms! (Picture: Capital) 69 images See the full gallery: AAA Pass At The Ready? Check Out The Best Backstage Moments From Capital's Jingle Bell Ball With Coca-Cola