Real name: Jeffrey Kollman

Effective period / Period of releases: 1995 - 2024

Jeffrey "Jeff" Kollman is an American guitar player from Toledo, Ohio, best known for his work with Glenn Hughes, Chad Smith's Bombastic Meatbats, UFO off-shoot Mogg/Way and progressive rock trio, Cosmosquad. He has worked extensively with contemporary jazz keyboardist Lao Tizer, played live with bassist/vocalist Marco Mendoza, and is currently a member of Asia feat. John Payne and blues rockers Bleeding Harp.

Kollman has worked as a session guitarist, producer, songwriter, and actor. He has written music for movies and TV, including a commercial which ran during the 2007 Super Bowl. He is the owner and operator of Marmaduke records, which has released the bulk of his albums. Kollman has been a Los Angeles resident since 1997 where he lives with his family.

Jeff Kollman is the brother of Tom Kollman (1964–2012).