Doug Firley, producer and keyboardist of Gravity Kills, is an accomplished musician and songwriter with over 12 years of classical training with the ability to write and perform in a variety of music genres and styles. He is a successful producer and engineer with an awesome sense of song structure.

For the last 15 years, Firley has made a career of producing and composing music for radio, television and motion pictures. After graduating with a film production degree from the University of Iowa in 1992, he co-founded Warren Media Group where he wrote and produced a number of local and regional commercial beds for television and radio including the Saint Louis Cardinals Television Baseball Theme in 1993.

He is most known for his work with industrial darlings Gravity Kills. Firley co-wrote and produced one of the group’s most famous singles, “Guilty.” The song exploded onto the local radio scene in the 90’s landed the band a contract with the legendary New York based TVT Records. Gravity Kills’ first, self-titled album was released in 1996 and led with the hit single “Guilty.” The track charted the top 10 at nearly every modern rock radio station in the country. The music video for “Guilty” was heavily requested on MTV and received constant air play; it rated in the top 20 continuously for weeks. That same album also produced three other top 10 singles and two more music videos. During this time Hollywood also began to take notice in Firley's music and utilized his talents on numerous high profile soundtracks including: Seven, Mortal Kombat and Escape From L.A. In addition, the song “Last” was featured in the film Kissing A Fool.

The huge success of the first album established Gravity Kills’ as one of the most creative and technically astute bands of the decade. The group also found worldwide chart success in England, Germany and France, and invoked a cult-like following. Firley’s studio efforts on Perversion, the band’s second release, in 1998 further pushed the group into the limelight. Gravity Kills’ again found top twenty success worldwide with this album. The record was a slight departure from the band’s first effort; the production broke all limits and established a new standard for others to follow.

2002 marked Firley's third album production and Gravity Kills' return to prominence with the release of Superstarved, their first album with Sanctuary Records and third album total. After a decade of cutting-edge music production, over a million records sold worldwide, numerous blockbuster motion picture soundtracks and network television underscores, Firley has established himself as a well respected producer.

In 2008, Doug received the Saint Louis Business Journal's "40 Under 40" award for business achievement and community service.

In 2009, Chris and Doug were featured on Alive Magazine's Buzz List.