American lead guitarist Warren DeMartin has an estimated net worth of $3 million in 2012. Warren Justin DeMartini was born on April 10, 1963 in Chicago, Illinois, United States. He claims that his passion for music was triggered by his brothers, James and Bernard. While he was still studying in college, he was invited to become a part of Mickey Ratt, the group which became a highly successful band in the 1980's. He replaced Jake E. Lee. He is noted to be the co-writer of some of the band's hit songs which include "Lay It Down", "Way Cool Jr.", "Dance", and "Round and Round".

When Ratt disbanded, he became a part of Dokken. Eventually, he joined Whitesnake. He then released Surf's Up!. A year later, Crazy Enough To Sing To You was released. Ratt eventually reunited, which led to the release of a self-titled album, and another album titled Collage.

According to DeMartini, his musical style is highly influenced by artists like Pete Townshend, Jimi Hendrix, Joe Perry, Jake E. Lee, Michael Schenker, Eddie Van Halen, Robbin Crosby, Randy Rhoads, George Lynch, Miles Davis, Uli Roth, Joe Perry, Tommy Bolin, Steve Lukather, and Joe Walsh.