The band at the party, the Loaded Blanks, are actually the hard rock band Great White.
Ally Sheedy had high hopes for this film, but knew she was in trouble after a pre-release screening at the Director's Guild in Los Angeles left the audience disenchanted. Sheedy took her mother to the event, who told Ally mid-movie, "You're better than the script."
Great White, the band that plays at the party in this film, was involved in one of the most horrific disasters in the history of rock music - the Station Nightclub Fire in 2003, in Rhode Island, that killed 100 people (including guitarist Ty Longley) and injured 230 (132 escaped unhurt). The band's manager did prison time for his role in the event. At the time of the disaster the band was performing under the name Jack Russell's Great White.
Merry Clayton, who plays the character of Audrey James (and sings "The Shoop Shoop Song [It's in His Kiss]," backed by the hard rock band Great White) during this movie, is arguably the best-known back-up singer of the mid-twentieth century. She sang backup on dozens of successful songs during the 1960s and '70s; her vocals on the Rolling Stones' "Gimme Shelter" and on Lynyrd Skynyrd's "Sweet Home Alabama" are two of her most famous backing performances. In 1963, while still in her mid-teens, she actually recorded the first version of "The Shoop Shoop Song (It's in His Kiss)," though it was Betty Everett's cover that became the better-known hit. Clayton was one of the main subjects of the 2013 documentary 20 Feet from Stardom, about backup singers in the music industry; it won an Oscar for Best Documentary Feature.