May 8 (UPI) -- The Beastie Boys ' Mike D released his first new song since the pseudo-hiatus of the legendary band 15 years ago, and debuted new music during the first stop of a surprise tour. The new project, called Mike D 5D, was unveiled late Thursday when the first single, "Switch Up," hit streaming services after he'd played the first show of a four-show tour. The song and tour follow D, whose real name is Michael Diamond, joining the band Very Nice Person, where he played a couple of