In 2009, a joint between Kronlund, the DJ Ali Payami and the teenage Swedish singer Mimmi Sandén worked in the song "Du" ("You" in Swedish). This song was selected by the national broadcaster of JESC in Sweden, TV4, and Mimmi performed it in the final of Junior Eurovision Song Contest 2009, which took place on 21 November 2009, on Kyiv, Ukraine. He went in to collaborate with Tove Lo.