Between 1992 and 1995 she gained experience as a member of the group Wonderful Game and became known for her two participations in the Flemish version of the Soundmixshow: in 1995 she came third with the song Grow A Baby by the Belgian pop group Pop In Wonderland [nl] and in 1997 she made it to the semifinals with Chirpy chirpy cheep cheep by Middle of the Road.

Originally thought as the Flemish version of the Spice Girls, the group eventually became famous for their songs for children.

Because K3 was originally envisioned as the Flemish version of the Spice Girls, the group was made up of all females in their twenties: Aerts, Karen Damen, and Kristel Verbeke.

[5] The production company made the group an even bigger success, with merchandising, film, TV series and books also being released.

[9] The same year she also decided to go back to children's music, releasing a song titled "Boerderij blues" (en.

Here she was reunited after a long time with Karen Damen, who sat on the jury of the program and correctly guessed the masked mermaid was Aerts.