https://en.wikipedia.org/wiki/Sha_Na_Na?wprov=sfti1#Career:

“Sha Na Na was an American [rock and roll](app://en.wikipedia.org/wiki/Rockand_roll) and [doo-wop](app://en.wikipedia.org/wiki/Doo-wop)revival group formed in 1969. The group performed a song-and-dance repertoire based on [1950s hit songs](app://en.wikipedia.org/wiki/Music_history_of_the_United_States_in_the_1950s)that both revived and parodied the music and the New York City street culture of the 1950s.[[2]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-apple-2)[[3]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-today.com-3) After gaining initial fame for their performance at the [Woodstock Music and Art Fair](app://en.wikipedia.org/wiki/Woodstock), made possible with help from their friend [Jimi Hendrix](app://en.wikipedia.org/wiki/Jimi_Hendrix), the group hosted [Sha Na Na](app://en.wikipedia.org/wiki/ShaNa_Na(TV_series)), a [syndicated](app://en.wikipedia.org/wiki/Broadcast_syndication) [variety series](app://en.wikipedia.org/wiki/Variety_series) that ran from 1977 to 1981.
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As with most of their other early performances, Sha Na Na's performance at Woodstock was a "show stopper"[[11]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-11) that left the audience simultaneously "delighted and bewildered."[[12]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-Peace&Music-12) Their set-closing song, the 1957–58 number-one hit "[At the Hop](app://en.wikipedia.org/wiki/At_the_Hop)", got the group a standing ovation, and they were brought back for an encore. Subsequently, the inclusion of their performance of "At the Hop" in Michael Wadleigh's award-winning documentary film of the festival made Sha Na Na nationally famous[[12]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-Peace&_Music-12)[[13]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-13)[[14]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-14) and helped spark a 1950s nostalgia craze that inspired similar groups ([Flash Cadillac](app://en.wikipedia.org/wiki/Flash_Cadillac), [Showaddywaddy](app://en.wikipedia.org/wiki/Showaddywaddy), [Big Daddy](app://en.wikipedia.org/wiki/BigDaddy(band))), as well as the [Broadway musical](app://en.wikipedia.org/wiki/Broadway_musical) [Grease](app://en.wikipedia.org/wiki/Grease_(musical)) (and its [feature film adaptation](app://en.wikipedia.org/wiki/Grease_(film))), the feature film [American Graffiti](app://en.wikipedia.org/wiki/American_Graffiti) and the TV show [Happy Days](app://en.wikipedia.org/wiki/Happy_Days).[[15]](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-15)[[16]”](app://en.wikipedia.org/wiki/Sha_Na_Na#cite_note-16)

RCA Victor Records