In the 1950s, the street corners of cities across the US were the rehearsal halls for nascent doo wop groups perfecting their harmonies. Frankie Lymon & the Teenagers and the Chips were among thousands of teens who honed their vocal skills under a streetlamp, dreaming of success.

“At the Hop” was a №1 hit for Danny & the Juniors: Danny Rapp, David White, Frank Maffei, and Joe “Terry” Terranova. White and singer John Madara, who signed with Prep Records, originally wrote the song as “Do the Bop.”

The Eternals were a doo wop group that formed in New York’s South Bronx. “Sometimes when we would sing in theaters they would say, ‘The Eternals, the only Hispanic, all-Puerto Rican group in the history of doo wop.’ And that made us proud,” lead singer Charlie Girona told NBC News.