Carl Christoffer Lundquist, born 1970, is a Swedish musician and producer. His own band is Brainpool where he started as a player and backing vocalist. Brainpool won a Swedish Grammy in 1994 and he has also produced albums by Per Gessle and Gyllene Tider and played in the backing groups of Roxette and Gessle. He has his own studio in the south of Sweden, The Aerosol Grey Machine Studio in Vallarum. The AGM is primarily a studio with much vintage equipment. In May 2011, Christoffer released his solo album, Through the Window. All the songs on the album were co-written with songwriter Michael Saxell, the album reached #29 on the Swedish album chart. Also in May, Christoffer was the first person ever to be awarded the Sir George Martin Award at an event in Malmö
The Aerosol Gray Machine Studio in Vallarum, Scania, where Lundquist records and produces his music.
Lundquist plays alongside Per Gessle at the Roxette Concert in Halmstad 14 August 2010