The 1981 hit "867-5309/Jenny" by Tommy Tutone became one of pop music's most notorious one-hit wonders, largely because of its unusually specific and memorable telephone number, which caused endless disruption for real people who shared it. Decades on, its co-writers, Alex Call and Jim Keller, have given conflicting accounts of where the song's central character came from, meaning the true inspiration behind one of the era's most recognisable novelty hits remains unresolved.

In a 1982 interview with People, Keller said Jenny was based on a real ex-girlfriend, whose name and number he claimed had been scrawled on a bar bathroom wall before he called her on a dare. However, in a 2004 interview with SongFacts, Call said he invented both the name and the number himself while writing in his backyard, and that Keller only added the bathroom-wall detail afterwards as a joke about how the lyric sounded. Call suggested the band later leaned into the "real Jenny" story because it made for better publicity than admitting the details were fabricated, though the article notes both versions could contain some truth, especially given that "Jennifer" surged in popularity as a baby name during the 1960s.