The story part of West Side Story revolves around youth and young love—there are perhaps three or four characters over age 20 in the famous musical. But from Broadway to Hollywood, the actors usually cast in these singing/dancing roles are frequently college age or older. As part of tonight’s DANCE This omnibus, for once, we’ll see Jerome Robbins’ famous choreography performed by teens who could plausibly pass for Sharks and Jets. (It’ll also be a preview for the touring West Side Story revival production, which reaches the Paramount next January.) Also part of this 13th-annual annual youth dance showcase from Seattle Theater Group are a section of Mark Morris’ Grand Duo and local dance groups with talents ranging from from tap and Tahitian to hip-hop and jazz. SANDRA KURTZ

July 8-9, 7:30 p.m., 2011