Pop superstar Rihanna capped a celebrity-filled Coachella festival Sunday with a surprise appearance, as her sometime songwriter Sia took a sharply different approach by testing the possibilities of on-stage anonymity. Rihanna turned up unannounced on stage during a headlining set of Calvin Harris, the British DJ behind a slew of electronic-infused smash hits. Sporting a camouflage cap, Rihanna went into her song "We Found Love," which was written by Harris, to the cheers of thousands of fans at the close of three days of revelry in the heat of the California desert.
If you want to nail celebrity music festival style this summer, then look no further than Coachella, which welcomed the young, rich and sartorially-gifted for its opening date over the weekend. Make like Victoria's Secret Angel Alessandra Ambrosio and opt for a color-drenched tropical print, teaming it with low-key denims and tying it around your waist for maximum nonchalance. Take a leaf out of Taylor Swift's book and revamp your hairstyle, whether permanently or using temporary dyes, glitter or wigs.