[3] In 2015, German DJ duo Gestört aber GeiL and Koby Funk produced a remix of his rendition of "Unter meiner Haut", an acoustic cover of Elif Demirezer's same-titled song which Weiss had previously uploaded on YouTube.

[3] The song peaked as number six on the German Singles Chart and earned a platinum certification by the Bundesverband Musikindustrie (BVMI).

In 2016, he released the single "Musik sein", which was a success in the German-speaking part of Europe, becoming a top ten hit in Austria and Switzerland.

[3] In May 2017, Weiss served as a member of Germany's jury at the 62nd Eurovision Song Contest in Kyiv, Ukraine.

[8] Also that year, Weiss voiced the titular character in a German animated fantasy family film Tabaluga, based on the media franchise of the same name created by musician Peter Maffay.