Not only did Iggy Azalea and Lady Antebellum win big last night (Jan. 7) at the 2015 People's Choice Awards, but the musicians were also on stage to give some rousing performances. Joined by Fall Out Boy, the trio of acts were on hand to perform their latest singles.

Azalea was the first to take the stage to perform the Reclassified single "Beg For It." Dressed in a skintight white bodysuit, the Australian rapper sizzled as she dropped it low and spat her rhymes with some bold intensity. And while MO wasn't there in person to perform the song's biting hook, Azalea worked with the backing track well, mouthing along to the chorus and showing off all her assets with some sexy dance moves.

The world of country was represented by Lady Antebellum. The down home trio, who also took home the People's Choice Award for Favorite Country Group, performed their latest single "Freestyle," off the album 747. Unlike Azalea's performance, which was marked with a glitzy stage and a crew of backup dancers, Lady Antebellum kept things simple in business casual clothes and a, well, free style of performance.

To keep the genre spread even at the People's Choice Awards, Fall Out Boy brought its lead American Beauty/American Psycho single "Centuries" to the stage. Recalling the track's cinematic gladiator-themed music video with screens filled with coliseums and statues, the Chicago rockers were fittingly epic, living up to the song's slow build and Suzanne Vega sample.

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