Carrie Underwood was on hand over the weekend at the T-Mobile Arena in Las Vegas, where the 2018 iHeartRadio Music Festival took place Friday (Sept. 21) and Saturday (Sept. 22). The country superstar rocked the crowd and hit the red carpet to pose for photographs.

The 35-year-old singer announced that she is pregnant with her second child in August, and she has been showing an adorable baby bump in recent photos and TV appearances. She disguised her baby bump by wearing a long, loose-fitting grey tunic shirt over black leather pants during her performance in Vegas, though she referred to the child she is expecting as she caught her breath before singing her current single, "Love Wins."

"Thank you very much," Underwood addresses the crowd in the video below. "My baby was kicking during that one. Baby likes you guys!" she exclaims to cheers before launching into the second single from her new album, Cry Pretty.

She also talked to reporters afterward and hit the red carpet for a series of photos that show Underwood looking as good as ever. Check out her performance and red carpet photos in the gallery at the top.

The 2018 iHeartRadio Music Festival also featured performances from Jason Aldean, Luke Bryan and Kelly Clarkson, who joined an A-list lineup that included Justin Timberlake, Jack White, Mariah Carey, Imagine Dragons, Sam Smith, Lynyrd Skynyrd, Panic! at the Disco, Shawn Mendes, Kygo, Rae Sremmurd, Logic and more.

Aldean also took part in a special tribute to the victims and first responders of the mass shooting that took place at the Route 91 Harvest Festival in Las Vegas on Oct. 1, 2017.

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