"All Star" is a song by American rock band Smash Mouth. It was released on May 4, 1999 as the second single from their album Astro Lounge, and is one of the group's most successful songs, peaking at No. 4 on the Billboard Hot 100.

"All Star" is composed in the key of F-sharp major with a tempo of 104 beats per minute.

The music video (directed by McG) features cameos by William H. Macy, Ben Stiller, Hank Azaria, Paul Reubens, Kel Mitchell, Dane Cook, Doug Jones, and Janeane Garofalo from the film Mystery Men (1999), which prominently featured the song.

The song reached No. 2 on the Billboard Modern Rock Tracks chart and No. 4 on the Billboard Hot 100. In Canada, it peaked at No. 2 on the RPM singles chart.

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