Credit: Jordan Strauss/WireImage

Minka Kelly joined hostess Jaime King at last night's West Hollywood Saint Vintage "Love Tour," an annual event that kicks off a yearlong campaign benefiting research organization Stand Up To Cancer. "Amazing nite 4 @SU2C & @SaintVintage!" King tweeted while working her new hairstyle—blue dip-dyed tips! Click through the gallery to see Elizabeth Banks, Kim Kardashian and more stars at last night's hottest events.

Leah Abrahams with reporting by Lindzi Scharf