David Jost (born 12 August 1972) is a German music producer, singer-songwriter and DJ born in Hamburg. His career has a track record of 74 platinum and 108 gold records and 14 No. 1 hits. He's worked with artists like Lady Gaga, Chris Brown, Tokio Hotel, Limp Bizkit, Selena Gomez, Nelly Furtado, Keri Hilson, Aura Dione, and Adam Lambert. For his work as a songwriter, Jost was named Germany's best songwriter (Rock & Pop) by the GEMA (the German equivalent to the ASCAP/BMI). For Tokio Hotel, Jost has composed, produced and mixed six No. 1 singles and three No. 1 albums.