He has previously been a member of White Lion, Black Label Society, Pride & Glory and Slash's Snakepit, and played with David Lee Roth, John Fogerty and Ace Frehley.

In 1979 LoMenzo joined the band Hooker, fronted by Debbi Pantera Saint, Kiss drummer Eric Carr's girlfriend at the time.

Other members were Dave Steele (David Bland who played with Rik Fox in an early version of SIN) and Gerry Laufer on guitars and Gael de Courtivron on drums.

He would go on with bandmate Greg D'Angelo to play with former Kiss guitarist Ace Frehley, and then later with Zakk Wylde's side-project Lynyrd Skynhead who evolved into Pride & Glory, who released one album in 1994.

LoMenzo played bass on the album Get Your Rock On by X-Drive, which was released in August 2014 via Frontiers Records and produced by Led Zeppelin engineer Andy Johns.

[16] He also appeared in Obszön Geschöpf's album Master of Giallo, contributing bass to the song "The Moon Watches Me When I Kill".

[17] In 2020, LoMenzo joined forces with Chris Adler (Lamb of God, Megadeth) and formed heavy metal band Firstborne, with the independent release of their self titled debut digital EP.

[19] He appeared on the song "Forgotten" by Sinful Betty's band which also featured Michael Angelo Batio on guitars and Brian Tichy on drums.

[20] Together with Tichy on drums, Lomenzo played bass on the debut EP by Libertad, an Argentinian hard rock trio fronted by Guillermo Lara.

[21] Outside of metal music, LoMenzo played bass for Lisa Gee's EP Shut It Down, which also features Carmine Appice on drums and Don Mancuso on guitars.

[22] Together with Kenny Aronoff on drums, Lomenzo appeared in the song "Alive" by rising blues-rock guitarist Nathan Pope.

[24] LoMenzo appeared in American keyboardist Bob Malone's album Good People, playing bass on a cover of the Fleetwood Mac song "Oh Well".

's rotating cast of members include Andreas Kisser, Tim "Ripper" Owens, Paul Bostaph, David Ellefson, Mike Portnoy, Jimmy DeGrasso, and Roy Mayorga.

[27][28] Due to the death of previously announced Slipknot bassist Paul Gray, LoMenzo agreed on only one day's notice to fly to Portugal and play the Rock in Rio festival where HAIL!

LoMenzo previously jammed with Lynch Mob drummer Brian Tichy in both Pride & Glory and Slash's Snakepit.