Which rock singer is backed by the E Street Band?

The island of Nevis forms a two-island Caribbean nation together with which island? Which quick eye signal, made by briefly closing just one eye, often hints at a shared joke or secret? What nickname did keyboardist Daryl Dragon use in his 1970s pop duo with his wife, Toni Tennille? Eric Clapton recorded "Layla" in 1970 with a band whose name paired the Dominos with which male name? Which singer led the Heartbreakers, whose hits included "American Girl" and "Refugee"? Which 1960s folk-rock group had hits with "California Dreamin'" and "Monday, Monday"? Which Detroit rocker was backed by the Silver Bullet Band? Which trumpeter led the Tijuana Brass, famous for hits like "A Taste of Honey"?