Before forming the chamber-pop group Wakey!Wakey! in Brooklyn more than a half decade ago, Michael Grubbs—influenced by the likes of Billy Joel and Elton John—was active in bar bands, musical theater and the anti-folk scene on the Lower East Side. Wakey!Wakey! (above, performing “Phoebe Cates”) first broke into the mainstream when the single “War Sweater” landed on an episode of One Tree Hill in 2009. Their most recent full-length, Almost Everything I Wish I’d Said the Last Time I Saw You… (stream it below), came out in 2010, featuring piano-driven rock backed by a variety of instruments, including violins, cello and bass. AbsolutePunk said it “may arguably be one of the year’s best releases. As the piano-pop genre continues to deflate, Grubbs and company just might be the ones to save it.” But Wakey!Wakey! have a brand new studio album, the upbeat Salvation, due out next month, and ahead of its release, they come home to play Music Hall of Williamsburg tomorrow night. Roots-rockers Chris Cubeta and the Liars Club and singer-songwriter Casey Shea open the show.