Gary Portnoy the "Cheers" theme song. Gary Portnoy Gary Portnoy (born June 8, 1956) is an American musician and singer-songwriter. He is best known for co-writing and performing the main theme song of the NBC sitcom "Cheers", "Where Everybody Knows Your Name". In the early 1980s, Gary Portnoy and Judy Hart Angelo set out to write a theme for "Cheers". After their first two attempts were rejected, "Where Everybody Knows Your Name" was selected. Prior to that, Portnoy's songs had been recorded by various artists, including Dolly Parton's "Say Goodnight" (co-written by Susan Sheridan) and Air Supply's "I'll Never Get Enough of
Mike Portnoy Fates Warning, Overkill, G3 and played on Avenged Sevenfold's album "Nightmare" in place of their late drummer, The Rev. Over the years, Portnoy has also created tribute bands to The Beatles, Led Zeppelin, Rush, and The Who, which has allowed him to perform the music of his four favorite drummers. In September 2010, Portnoy announced his departure from Dream Theater after 25 years. He was replaced by Mike Mangini. Since leaving Dream Theater, Portnoy has formed several new bands. The first, Adrenaline Mob, a traditional heavy metal/hard rock band with singer Russell Allen (of Symphony X) and guitarist Mike Orlando.