Chris Vrenna

In 2017, it was announced by Vrenna's Facebook page that he would be composing music for the upcoming video game, Quake Champions, which marks his second collaboration with id Software since Doom 3.

In 2015, Vrenna composed the music on a series of downloadable content packs called Exo Zombies for Call of Duty: Advanced Warfare.

Vrenna has also worked on music for several video games, including Call of Duty: Advanced Warfare, Doom 3 (as producer with Clint Walsh), Quake 4, American McGee's Alice, its sequel Alice: Madness Returns, Enter the Matrix, Sonic The Hedgehog, Area 51, and Need for Speed: Most Wanted. In 2004, he started soundtrack work on Tabula Rasa, a massive multiplayer online game. He also helped compose the theme song to the animated series Xiaolin Showdown.

Vrenna was chosen to take over the drumming responsibilities for Marilyn Manson after Ginger Fish was injured in 2004 during the Lest We Forget tour. He then replaced Madonna Wayne Gacy as the permanent keyboardist for Marilyn Manson. Vrenna co-produced the albums The High End of Low (2009) and Born Villain (2012). In April 2011, following the departure of Marilyn Manson's drummer Ginger Fish, Chris Vrenna was announced to be his official replacement. However, in November 2011, it was announced that Vrenna had parted ways with the band in order to focus on scoring movies and video games.

Vrenna was Billy Corgan's programmer for four months in 1997. While he was on tour with the Smashing Pumpkins, Vrenna got a call from Axl Rose, who invited Vrenna to spend time with Guns N' Roses to work on what would become "Chinese Democracy". "I did for a couple weeks, but then decided I didn't want to join the band", said Vrenna. Vrenna stated in a later interview that he was in the band for several months before dropping out due to the required time commitment.

Vrenna won a Grammy award as a member of Nine Inch Nails for "Best Metal Performance" for "Happiness in Slavery" in 1995 for the live performance of the song on Woodstock '94.

He later reconnected with Trent Reznor, whom he met during high school in Pennsylvania, when they both were in local Cleveland, Ohio band the Exotic Birds. He also toured as a live drummer for KMFDM during the Money era tours, in 1992. He records under the name Tweaker, and has released four albums under that name: The Attraction to All Things Uncertain (2001), 2 a.m. Wakeup Call (2004), Call The Time Eternity (2012), and And Then There's Nothing (2013). Tweaker toured select North American dates with Skinny Puppy in 2004.

Vrenna graduated from McDowell High School in Erie, Pennsylvania in 1985 and marched in the Erie Thunderbirds Drum and Bugle Corps. Vrenna then moved to Chicago, quickly becoming a part of the Chicago industrial music scene and was briefly a member of Die Warzau and Stabbing Westward.

Chris A. Vrenna (born February 23, 1967) is an American musician, Grammy-winning producer, engineer, remixer, songwriter, programmer, and founder of the electronic band Tweaker. Vrenna played drums for the industrial/rock band Nine Inch Nails from 1989 until 1997, and was the keyboardist and drummer of the American rock band Marilyn Manson from 2004 until late 2011.