Carrie Underwood Sizzles In Tiny Shorts At Apple Music Festival

Total knockout.

Carrie Underwood turned up the heat on Monday as she performed at the Roundhouse in northwest London for the Apple Music Festival. 

The superstar country singer sizzled as she sang, looking like a total knockout in a black sleeveless shirt and tiny black lace shorts. 

Earlier this month, the former "American Idol" winner spoke to Taste of Country about the festival, calling it a "such a thrill" to play in the U.K. 

"I’m really looking forward to heading back and being a part of such an amazing lineup at this year’s Apple Music Festival," the 32-year-old told the website. "What a unique concert experience, not only for the fans at the Roundhouse, but also for fans across the globe who can stream it live!”

It's been a busy year for Underwood, who became a first-time mom in February and has since released her first music video since giving birth. The singer looked like a total smoke show in the video for "Smoke Break," which is off of her upcoming album "Storyteller."

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