The stars celebrated the arrival of warmer weather on the red carpet this weekend! Halle Berry looked hot in a pink Roberto Cavalli frock when she hosted the annual Silver Rose gala at the Beverly Hills Hotel. Berry's beau, Olivier Martinez, cheered her on as she raised funds for the Jenesse Center at the annual event. Ashley Greene, Lea Michele and Camilla Belle showed off their summer style at the Coachella music festival, Kim Kardashian soaked up the sun in Las Vegas, and Lady Gaga enjoyed a mini-vacation at Disney World in Orlando, Florida. See more photos from this weekend's hottest parties!