Seppe Guido Yvonne Herreman (born 13 May 1999), known professionally as Red Sebastian, is a Belgian singer-songwriter.

In 2013 he participated at the age of fourteen in the second season of the television show Belgium's Got Talent on the Flemish TV channel VTM.

With the song "Ain't No Other Man" from the American singer Christina Aguilera he made it to the final.

After high school Herreman studied singing at the Royal Academy of Fine Arts (KASK) in Ghent.

He became the final winner with a total of 423 points,[4] thus earning the right to represent Belgium at the 2025 Eurovision Song Contest.