Merriweather Post Pavilion kicks off its 2011 season with The Sweetlife Festival, sponsored by delicious local salad chain sweetgreen and featuring performances by indie-cred acts such as the Strokes, Girl Talk, Lupe Fiasco, Cold War Kids and Ra Ra Riot. Local farmers will also offer hearty grub at this "carbon neutral event." Sunday, May 1, starting at noon. Merriweather Post Pavilion, 10475 Little Patuxent Parkway, Columbia, Md. Tickets are $55. Call 800-551-SEAT or visit merriweathermusic.com.