Long before Iggy Azalea and Jennifer Lopez recorded "Booty" together, they shook their ample asses on stage at a concert in Chicago.
Unfortunately, for Iggy, that's about all she did, as she missed her cue, fell out of sync with her pre-recorded vocals, and pretty much just awkwardly twirled around pointing at her butt for the rest of the song.
To her credit, she doesn't even attempt to hide it - an approach that calls to mind the famous Ashlee Simpson SNL lip syncing scandal of 2004, in which Jessica's little sis opted to dance a jig on stage rather than even pretend to sing.
Of course, this newly released footage might add fuel to the Iggy Azalea-Nicki MInaj feud, as the whole thing supposedly started when Iggy trash-talked Nicki for lip syncing at the BET Awards.
There's also a rumor associated with this clip that could result in yet another celebrity beef for Iggy-Ig: