Todd Williamson/WireImage
Bronwyn Barnes
May 12, 2011 @ 4:00 pm

In premiere news, Ashley Greene and co-star Hayley Ramm showed off their spring style at the debut of the 80's-theme roller skating flick Skateland in Los Angeles, while Rachel McAdams and Salma Hayek were among the stars who paraded down the Croisette in their couture at the Cannes Film Festival. As for non-cinematic parties, Sarah Jessica Parker joined the culture club for the New York City Ballet's spring gala, while Joe Jonas and Olivia Munn were among the sexy guests at Maxim's Hot 100 bash in Hollywood. Click through the gallery to see more photos from last night’s hottest parties.

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