Bell performed as a member of Oasis from 1999 until 2009, and has songwriting credits on each of the band's last three albums.
Gallagher has, however, confirmed he'll be taking on vocal duties for Oasis' upcoming reunion tour.
Oasis' upcoming tour has been marred by ticketing trouble, with frontman Liam Gallagher growing tired of the topic.
The Oasis frontman is surprisingly fond of the heavy reinterpretation of his band's perennial Britpop anthem.
He headlined the festival as part of Oasis back in 2002.
