Fact: Rap duo the Ying Yang Twins missed out on the chance to perform on Ariana Grande's smash-hit Problem after failing to "get it together" in the studio, according to the singer's A&R representative Wendy Goldstein. She tells Rolling Stone magazine, "They just flopped it". The rap duo's loss became a big win for Australian rapper Iggy Azalea, who replaced the Twins on the track.