from wikipedia:
Early in his career, Manilow was a commercial jingle writer/singer, writing the theme for State Farm Insurance, "Like a good neighbor, State Farm is there" and the "Stuck on Band-Aid" song, among many others. Reportedly he also wrote the breakthrough McDonald's ad campaign theme, "You Deserve a Break Today". He then worked as a pianist, producer and arranger, accompanying Bette Midler among others at the Continental Bathhouse in New York City.
Bette Midler? Bathhouse? That leaves little room for doubt, he's a homo.