"Grandma" became so popular, toy companies licensed the song to be played in stuffed reindeer, and it appeared in film and television soundtracks. References to the song appeared in comic strips, game shows, greeting cards and even Trivial Pursuit. Eventually, television producers vied for the rights to create an animated Christmas special based on the lyrics.
Brooks and Elmo were never worried about making money off the song or that the song would play for more than one Christmas season. But it's been 30 years and DJs across the country continue to play "Grandma," and Dr. Elmo hits the road to perform.
"There were so many years that I didn't know whether it was going to come back or not," Dr. Elmo said. "So now when I hear it I'm always grateful that it did come back, and people are beginning to say that this song is one of the great classics and I'm happy to know that."