Thomas Berge released his first single at the age of twelve. The album, Mijn Luchtballon, sold 800,000 promotional copies and was distributed by Neckermann. His stage name was chosen with the German music market in mind. In 2005 he was awarded the Zilveren Harp, the most prestigious award for promising new talent given in The Netherlands.

In October 2007 he recorded, along with fellow Dutch singer Tess, the Dutch version of the song "You Are The Music in Me 'from High School Musical 2, called "De Stem van Mijn Hart".

He has made a number of television appearances throughout his career. Most notably, he stars in his own reality show, broadcast since 11 January 2008, on Dutch television station Nederland 1.

He released his first single to enter the Dutch top 10, Zonder Jou in 2008. Zonder Jou was followed shortly by Ieder Moment which peaked at number 4 on the Dutch Single Top 100 chart and Kon Ik Maar even bij je Zijn which was Thomas' first number one single in The Netherlands.