Jan Dettwyler, born October 18, 1978, in Wohlen, Switzerland, known professionally as Seven and Jan Seven Dettwyler, is a Swiss R&B and soul singer and musician. The son of a tenor and a pianist, he began singing in the a cappella group Natural Acapella at age 15, performing on Swiss broadcaster SF DRS. He released his debut studio album, Dedicated To..., in 2002, subsequently opening for Destiny's Child at the Hallenstadion in Zurich. His second studio album, Sevensoul, released in 2004, reached number 35 on the Swiss Albums Chart, while his third studio album, Lovejam, released in 2005, reached number 9. His fourth studio album, Home, released in 2007, reached number 5 and earned Gold certification in Switzerland, followed by his fifth studio album, Like a Rocket, in 2009, which reached number 2. In 2011, he released his debut compilation album in Germany, Focused, featuring the single “Lisa”. He followed with studio albums including The Art Is King in 2012, BackFunkLoveSoul in 2015, and Ich bin mir sicher! in 2022. From 2020 to 2022, he hosted the television series Sing meinen Song – Das Schweizer Tauschkonzert. He competed in the Free European Song Contest in May 2021. Seven won the Prix Walo in the Pop/Rock category in 2009 and the Swiss Music Awards Artist Award in 2017.
