In her first big appearance since giving birth to Isaiah Michael on Feb. 27, Carrie Underwood treated fans to a powerful performance of "Little Toy Guns" at the 2015 CMT Music Awards.

The singer looks absolutely fantastic a little over three months after delivering Isaiah -- and while motherhood makes her whole life look different, it's clear that she's been hard at work in the gym. Props to the new mama for her diligence! Underwood wore a gorgeous black dress that accentuated her curves, and her blonde hair was a little shorter than normal -- perhaps a new hairdo for the new mom?

Billows of smoke, pyro, elaborate lighting and Underwood's electrifying vocals made this performance an absolute standout of the evening. Plus, a wind machine made things look that much more dramatic. You might even say that we were "blown away."

Underwood led the nominees at the awards show, with five nods to her name. "Something in the Water" and "Somethin' Bad," her duet with Miranda Lambert, were both up for the evening's highest honor, Video of the Year. "Little Toy Guns" and "Something in the Water" received nominations for Female Video of the Year, and the singer also had a nomination for Collaborative Video of the Year (“Somethin’ Bad”).

Underwood is slated to perform at the 2015 CMA Music Festival on June 13 at Nashville's LP Field.

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2015 CMT Awards Red Carpet Photos