David Stephen Koz is an American saxophonist, composer, record producer, and radio personality based in California.

Vulfpeck is an American funk band founded in 2011 in Ann Arbor, Michigan, by Jack Stratton, Theo Katzman, Woody Goss and Joe Dart. The band has released four extended plays, six studio albums and one live album through their own record label. The band gained recognition in 2014 for releasing Sleepify, a silent album that exposed a loophole in Spotify's royalty distribution and funded an admission-free tour. The band is one of the first to sell out Madison Square Garden without a manager or backing label, and released the recorded performance as a live album in 2019. The band's most recent album, Schvitz, was released in December 2022.