Miranda Lambert was the top dog going into tonight's CMA Awards with nine nominations in seven different categories, but her crowning moment came when she teamed up with Meghan Trainor for the pop smash "All About That Bass."

"[I'm] obsessed with her song. We listened to it at least 150 times on the tour," Lambert told CMT's Cody Alan prior to the performance. "Like, right before we walked on stage, we'd crank it up ... These awesome crew guys dressed in black are like, 'All about that bass.' I'm like, 'This is great! This song brings everyone together.'"

The pair tried to go all out on Trainor's hit. Neither one outsang the other, and both looked like rehearsal time was at a premium. There could have been some more twang, but either way, it was a decent way to follow up Kenny Chesney. Check it out below. 

Lambert was quickly called back onstage when she won Single of the Year for "Automatic."

The singer is nominated in a ton of categories tonight. Her album, Platinum, came out in June to some very positive reviews. "Platinum is a supremely balanced set, tailor-made to reflect the singer's fully evolved, dichotomous persona: a tough-as-nails traditionalist pining for the good-ol-days (honky-tonk reflective 'Old Shit,' the slow-burning, lighter-waving 'Automatic') who still gets her kicks moonlighting as a cowboy-boots wearing tease (the hip-hop bouncy 'Platinum,' 'Little Red Wagon'), Spin wrote.

"All About That Bass" continues to dominate Billboard's Hot 100 chart.

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