CAPTION THIS: My, What Big…Eyes You Have, Katy Perry!

The stars were out in full force last night for the Grammys — and evidently, so was Katy Perry‘s chest. Despite that pesky CBS memo warning artists not to show any skin during the telecast, Miss Perry’s generously-cut keyhole dress found the Teenage Dream chanteuse turning the Grammys into the Golden Globes. (“This is the part of me,” indeed!) She’s used them to her advantage in the past: Serving up a whipped cream surprise on “California Gurls,” busting out some neat pyrotechnics for “Firework”…and now, using them to render Ellen DeGeneres speechless backstage (and leave Ellen’s wife Portia de Rossi mortified, it seems.)

This photo of Ellen, Portia and Katy getting silly offstage caught our attention as quickly as Ellen’s, but we just couldn’t find the right words to describe our many emotions. So come on, help us out with this week’s Caption This contest after the jump.

Got an LOL-worthy caption for this photo? Leave it in the comments and the winning remark will be posted on our front page on Friday!