Thomas Hübner (born 9 April 1980), better known by his stage name Clueso (pronounced [klyˈzo]), is a German singer, rapper, songwriter, and producer.

Around that time, he performed with Curfew at the MTV HipHop Open in Stuttgart and at Beats for Life in Cologne.

One year later, he started producing his second album Gute Musik, which translates to "Good Music" (featuring Blumentopf, Steer M, Tilmann Jarmer, Delhia, Tim Neuhaus and Jürgen Kerth), which was finished by 2004.

On 14 February 2008, Clueso again represented Thuringia in Stefan Raab's Bundesvision Song Contest.

The same year, Clueso collaborated with Udo Lindenberg performing the song "Cello" on the album MTV Unplugged – Live im Hotel Atlantic.

After having released number 1 album Stadtrandlichter in 2014, Clueso parted ways with his long-standing band and management team.