Sweet Georgia Brown is the theme of the Harlem Globetrotters. It was created by Ben Bernie, but has been covered by numerous artists, of all genres, and remains a jazz standard. The version associated with the Harlem Globetrotters is the one by Brother Bones & his Shadows, featuring Brother Bones (Freeman Davis) on his "bones" and whistling.
For a slightly more in depth history of Brother Bones and his version of Sweet Georgia Brown (including a free MP3 of the song), visit http://www.whistlingrecords.com/brother_bones/brother_bones.htm.