Ever since it first started a few months back, the reason behind the success of "Lip Sync Battle" isn't only seeing celebrities rocking it at lip syncing, but also how loosened up and weird the most fabulous people in the world can get - and now, that also includes Iggy Azalea and Nick Young!

As they prepare everything for their wedding (where the Aussie singer's BFF Demi Lovato will be a bridesmaid), Iggy Azalea and Nick Young popped by to visit the show hosted by Chrissy Teigen and LL Cool J, and of course the "Fancy" rapper wasn't about to go easy on her performance, taking up the stage in the "iggiest" way possible!

According to E! Online, things started to get interesting with Iggy Azalea and Nick Young's battle as soon as the "Black Widow" singer took the stage, choosing the song "Freak Me" by Silk and taking it quite literally in her performance.

Things got really steamy during Iggy Azalea and Nick Young's lip sync battle as Iggy went into the floor to pull some seriously hot moves, with her all-supportive fiancé laughing it up next to LL Cool J just a few steps back - no trouble in paradise there only weeks ahead of their wedding!

Of course, the 25 year-old went full out in her performance, and according to Perez Hilton she twerked her butt off and even ended up doing some very humpy-like moves, so the episode will be more than interesting.

Other hilarious performances at "Lip Sync Battle" have included Oscar winner Anne Hathaway channeling Miley Cyrus in "Wrecking Ball" and even Justin Bieber doing some very metal moves as Ozzy Osbourne, even biting a fake bat onstage.

As MTV reports, unfortunately for now there's only a clip of Iggy Azalea and Nick Young's battle featuring the blonde rapper, but the full episode will be airing next Saturday - watch the clip below!