Darrell Earnest Fitton is an English electronic musician from Rochdale, England. Most of his work is recorded under the monikers Bola and Jello, released primarily on Skam Records. Fitton has also contributed to electronic acts D-Breeze, Brahma and Ooblo, and Autechre's Gescom project. Fitton was rumoured to have left the music industry in November 2007, but in 2017 he released the album D.E.G.