Maybe the Victoria's Secret Fashion Show had something to do with it, because this week's looks are hot. Between all the LBDs making their way down the red carpet, there's a sultry side to each; then, a few surprises — vintage-inspired glam, and a dose of Fall's best trends via street style. For me, it's always a thrill to see how January Jones will play up a look, like a black sheath with back-revealing details. Katy Perry proved she's hot on stage or off, and Karolina Kurkova gives another amazing model moment, even when she's not dancing down the catwalk. Just click on for more of this week's Fab celeb looks.