He has also recently formed his AllStar Band with drummer/vocalist Chad Cancino and guitarist/keyboardist Torbjorn Andersson, and also works as a composer for film and TV.

DiCosmo started to learn the bass guitar aged 15, and played with a number of bands in the northeastern Pennsylvania area, before moving to Los Angeles and being chosen by Billy Sheehan to take part in the Musicians Institute Scholarship Contest.

The album produced a number of hit singles featuring DiCosmo's playing, including "Bring Me to Life" and "My Immortal".

DiCosmo performed as part of a line-up featuring guitarists Scott Gorham and John Sykes, and drummer Tommy Aldridge.

DiCosmo later toured with ex-Toto frontman Bobby Kimball, and returned to session work with artists such as Ronnie Montrose and Jason Bonham.