Kevin Ratajczak (born August 7, 1985) is a German singer, songwriter, and musician.

As a child, Kevin's experience with harder music derived from listening to Deep Purple albums his father possessed.

[1] In 2010, he helped form Electric Callboy, under the original name, 'Eskimo Callboy', in Castrop-Rauxel, North Rhine-Westphalia, alongside fellow singer and clean vocalist Sebastian "Sushi" Biesler, lead guitarist Daniel "Danskimo" Haniß, bassist Daniel Klossek, drummer Michael Malitzki, and rhythm guitarist Pascal Schillo.

In 2021, he hosted the Oberkante Unterlippe podcast alongside Sallach, which was broadcast in the night program on Rock Antenne.

at the Disco as a role model and his favorite concert involved Slipknot on the "Iowa" tour 2003 in which he was in attendance at the Grugahalle in Essen.