Tom Chapin

Tom Chapin (born March 13, 1945) is an American musician, entertainer, singer-songwriter, and storyteller.

Chapin is known for the song "Happy Birthday", released in 1989 in his ''Moonboat'' album. It takes its melody from "Love Unspoken", a song featured in the opera ''The Merry Widow'' by Franz Lehar. Provided by Wikipedia