THE PUPPINI SISTERS
They're a UK-based vocal group with an Andrews Sisters-style three part harmony. I don't think I ever need to hear another version of Boogiw Woogie Bugle Boy or Mister Sandman, especially in the same stye. But do click the link and check out their quirtky versions of Heart Of Glass and I Will Survive. They also cover Wuthering Heights, but that's not on their player.