It's Lady Gaga!
Tons of you got it right away – who else but Lady Gaga would wear something so crazy? She always rocks crazy outfits, and loves finishing them off with outrageous hats.
She wore this floral hat to see the Philip Tracy fashion show at London Fashion Week. The designer has made some of the singer's most famous hats, like the sparkling lobster hat and the telephone one.
Congrats to Wambie girls CNCQT, TotiFruit, and MissTogekis for guessing right first!
Source: Ace Showbiz