<P> Both versions of the song (Todd Griffin and Cheap Trick) used on the show end with somebody yelling "Hello, Wisconsin!" In Griffin's version, Masterson is the one yelling "Hello, Wisconsin!" while it is unknown who yells it in Cheap Trick's version during the opening . On the soundtrack, That' 70s Album (Rockin'), Cheap Trick's lead singer Robin Zander yells "Hello, Wisconsin!" Alternate holiday versions of the theme song were arranged for Halloween and Christmas specials, using organ music and bells, respectively . </P> <P> Opening credits for seasons 1--7 showed members of the cast driving in Eric's car singing the theme song together . At the conclusion of the opening, a shot of a 1970s - style Wisconsin license plate (black letters / numbers on a yellow background) is seen, showing the year in which the episode was taking place in the bottom right corner . During the first season's opening, a single shot of the group is used; beginning with season 2, numerous alternating shots were used of the cast in various groupings (including the adult cast members, who had not appeared in the first season's opening). </P> <P> After Topher Grace and Ashton Kutcher left the series, the opening credits were reworked for season 8 to feature close - up shots of each of the actors singing (or mouthing) a line of the theme song in the Circle (for example, Mila Kunis "Hanging Out ...;" Danny Masterson "Down the Street"). The only actors to not say or do anything in the new opening credits were Kurtwood Smith and Tommy Chong, with the exception of the first episode of season 8, when Chong sings the last "We're all alright". Smith looks at the camera frowning and rolls his eyes . Chong looks around the room, confused as he hears "Hello, Wisconsin!" The final episode omits most of the opening sequence and instead only shows the license plate shot . </P> <Table> <Tr> <Td> </Td> <Td> This section possibly contains original research . Please improve it by verifying the claims made and adding inline citations . Statements consisting only of original research should be removed . (November 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table>

Who sings the theme song from that 70's show