Best conversation starter: Jennifer Lopez. Ever since JLo wore the tropical bikini cover — sans bikini top — for the 2000 Grammys (the dang thing merited its own Wikipedia entry), her evening wear has... more 

Best conversation starter: Jennifer Lopez. Ever since JLo wore the tropical bikini cover — sans bikini top — for the 2000 Grammys (the dang thing merited its own Wikipedia entry), her evening wear has been under online scrutiny. Her track record holds up: The Hollywood Reporter raved about her "'60s-style mint-green Valentino, an ivory Zuhair Murad [2011], a frothy peachy Marchesa mini," and Glamour thinks she's an all-time golden girl. She's rumored to be a presenter in 2013 (she pulled out in 2012), which means another highlight guaranteed. less