Steve Harwell as Smashmouth composed 2 songs for the English version of "Pororo, the Racing Adventure" including "Beside Myself" which was originally going to be used in Shrek 2 film by Dreamworks in 2004, and "Everything Just Crazy" which is played during the film and at the end credits. The South Korean version however does not have those 2 songs by Smashmouth as they have 2 different songs called "We Are Champions" and "Sing Sing".