He was, he had his own, and before that he played in Miles Davis's band
i think
He is only in Skillet. He is the lead singer and bassist.
Bands John Lennon sang and played in: The QuarrymenJohnny and the Moondogs The Silver Beatles The Beatles The Dirty Mac Plastic Ono Band
Jennifer Wayne sings in a country group called Stealing Angels.
Lettuce is a fantastic band. Some of the members in it crossed over from Soulive :) ...and Tower of Power is always a classic funk band