Sugarland's Jennifer Nettles and Kristian Bush introduced a thrilled ACM Awards audience to a spot-on performance of their hit song 'Tonight.'

Screaming fans cheered on Nettles, in blue, and Bush, in a fedora, as they serenaded both live and television audiences from the stage at the MGM Grand in Las Vegas. 'Tonight' is a track off of Sugarland's 2010 album 'The Incredible Machine.'

Sugarland are up for two awards at the 46th annual ACMs, including Top Vocal Duo of the Year and Video of the Year for their music video, ‘Stuck Like Glue.' Nettles is also set to perform alongside R&B popstar Rihanna later in the evening.

In other Sugarland news, Taste of Country's sister site PopCrush is currently hosting a contest to meet and see the duo live in concert. For all the contest details, click here.