Four best friends from Baltimore County teamed up to make wild, eccentric, challenging rock music -- or as they call it "sonic free form electronic horror gospel hip hop soul pop madness" -- and the surprise of it all is, they succeeded beyond anyone's wildest dreams. Animal Collective is just about the most popular act going in the indie/hipster music scene, and the foursome return for a hometown show at the venue that's the namesake of its last critically acclaimed album. Saturday, July 9. Doors at 6:30 p.m. Merriweather Post Pavilion, 10475 Little Patuxent Parkway, Columbia, Md. Tickets are $30 t0 $45. Call 800-551-SEAT or visit merriweathermusic.com.