Double Pact are a Swiss rap group from Lausanne, Switzerland. They rap in French, and have collaborated extensively with French and German rappers/hip hop artists. Andres Andrekson, better known by his stage name Stress, was born in 1977 in Estonia, and moved to Lausanne, Switzerland at the age of twelve. He was member of Double Pact, and started his solo career in 2003 with Billy Bear. Since then, his music enjoys great success in Switzerland, with all four solo albums reaching the Top 20. Serge Djoungong known by his stage name Negatif (Nega till 2009) is born in Geneva, but with origins from Cameroon. Nega released his 4th album “Atlanta&Roestigraben” on 2012 and plan a new album for 2018. Yvan continued as a producer, like with Booba's Mauvais Garçon, Kenza Farah's Désillusion Du Ghetto and Sinik's Ne Dis Jamais among others. He also contributed on Beginner's single Gustav Gans with a remix. Yvan (real name Yvan Jaquemet) works as a music producer and also supports Stress and Nega musically in their solo careers. On December 12, 2006 he released a mix album called Union Beats Switzerland. Source: Wikipedia