K3 is a girlgroup from Belgium and the Netherlands, who makes music for children.

In the beginning the group included Karen Damen (1974), Kristel Verbeke (1975) and Kathleen Aerts (1978). In 1997 they launched their first single.

In 2009 Kathleen Aerts left the girlband and Josje Huisman (1987) took in here place, when she won the competition ‘K2 zoekt K3’.

In 2015 all the 3 girls left the band and were replaced by 3 other girls with the competition ‘K3 zoekt K3’ : Hanne Verbruggen (1994), Klaasje Meijer (1995) en Marthe De Pillecyn (1996).