For the first eleven seasons of their existence in the NBA, the Suns had no official mascot. An early attempt was made involving a sunflower costume, but it never caught on[7]. In the winter of 1980, a singing telegram from Eastern Onion was sent to the arena in a gorilla costume. Security saw him and suggested to him to stay for a while to entertain the fans during the breaks. He kept coming to games until officially invited to be the Suns' mascot.

Since then, the gorilla, named Go, has been known for his slapstick humor during the games and the fantastic dunks that are performed before each 4th quarter. The gorilla was honored in 2005 when he was selected to be one of three inaugural members of the Mascots Hall of Fame.