18. BEST: Now that’s a creative way to keep your hair in place when it rains! Katy Perry opted for an attention grabbing updo to go with her Vivienne Westwood Couture ‘White Chinese’ sequin long delicate drape dress. 20. BEST: Taylor Swift dazzled in an impeccably embellished Reem Acra strapless gown, wearing her long locks in a side ponytail.