Nikki Riethoff has 2 K3 concerts.

1. K3 (pronounced English: Kah-dree, Dutch: Ka-drie) is a Flemish/Dutch girl band with a Dutch repertoire, founded in 1998. The name of the group is derived from the names of the three original members: Karen Damen, Kristel Verbeke and Kathleen Aerts. Kathleen Aerts left the group in 2009. Josje Huisman was chosen as K3's new member on October 3, 2009. Their music is produced by production company Studio 100 and is written by Miguel Wiels, Alain Vande Putte and Peter Gillis.