Sandén represented Sweden at the Junior Eurovision Song Contest in 2006, singing "Det finaste någon kan få". She came third, which remains Sweden's best result. She appeared in SVT's New Years' celebrations on 31 December 2006, which was broadcast live from Skansen. She also won the talent competition, Stellar Shots. She performed a duet with Magnus Carlsson in the song "Julens tid är här" ("Christmas time is here"), on his Christmas album" Spår i snön" in 2006.