Sweden selected its entry for the Eurovision Song Contest 2008 by holding an extending national selection, namely Melodifestivalen 2008. A record of 3,489 entries were submitted to the broadcaster SVT, and 28 were chosen to compete. They were completed with 4 wildcards in the end of December. Melodifestivalen was also this year held on Saturdays, starting with the first of the four heats on 9 February and ending with a final on 15 March. It was the last of the year's national selections, as the official ESC draw was held on 17 March. Four songs progressed from each heat, two to the final and two to the second chance round, where the songs were competing in a knock-out round to gain the last two places in the final.

"Hero" is a 2008 pop song performed by the Swedish singer Charlotte Perrelli, written by Fredrik Kempe and Bobby Ljunggren. It was entered into the Melodifestivalen 2008, winning at the Globen arena on 15 March 2008. Due to this, it represented Sweden at the 2008 Eurovision Song Contest in Belgrade, Serbia.