Smash Mouth is an American rock band formed in 1994 in San Jose, California. The group is best known for their catchy songs that blend elements of rock, pop, and ska. Their most popular tracks include "All Star" and "Walkin' on the Sun," which gained significant radio play and commercial success in the late 1990s and early 2000s. The band's lineup originally featured lead vocalist Steve Harwell, guitarist Greg Camp, bassist Paul De Lisle, and drummer Kevin Coleman. Over the years, Smash Mouth has released several albums and continues to perform, maintaining a loyal fan base while contributing to various soundtracks, including the popular animated film Shrek.