Big Star 's original version of the song was not used on the show. Instead, a cover version sung by Todd Griffin was used as the theme song for the show 's first season. Beginning in the second season, the theme song was performed by the band Cheap Trick. Unlike previous versions of the song, Cheap Trick ended the song with the repeated phrase "We 're all alright! '' quoting the ending of their 1978 hit song "Surrender ''.
who sings the theme song on that 70's show
Todd Griffin Cheap Trick Cheap Trick