Tune in: Harry Nilsson
Wacky, wonderful, rocking, poignant at turns, Who Is Harry Nilsson (And Why Is Everybody Talkin' About Him? His best friends are the Beatles, he'll take you out for a night of drunken revelry that might turn into a weekend (or a year, ask John Lennon), he'll wake up in his robe and sing you one of his songs about being hungover (he was an expert) and then break your heart with his original version of "One." He'll offer to let you stay in his London flat, but you probably don't want to take him up on it.
Nilsson's music is idiosyncratic, weird, verging on novelty (maybe getting there sometimes), but there's an affecting, heart-piercingness at its core, in his voice and lyrics, and he had undeniable talent as a songwriter. No one sings noises like he does, and whenever I listen to him, I find myself singing every yowl and wah wah hours later in my head. Plus, he's a genius with album titles: Nilsson Schmilsson, Son of Schmilsson, A Little Touch of Schmilsson in the Night, Knnillssonn.
If you like his music and are interested in his hijinks, I recommend the above referenced documentary. Let Harry Nilsson give you whirl!