Kelly Clarkson Covers Rihanna's 'Stay': Watch

Kevin Winter/BMA2015/Getty Images for dcp
Kelly Clarkson performs onstage during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada. 

As if Kelly Clarkson has to prove she can sing just about any song, she covered Rihanna's "Stay" at Pittsburgh's First Niagara Pavilion on Sunday (July 19) and absolutely killed it.

Kelly Clarkson Covers Nick Jonas' 'Jealous': Watch

The singer is continuing to incorporate fan-requested cover songs on her Piece By Piece Tour, which has resulted in her singing everything from Nick Jonas' "Jealous" to Imagine Dragons' "Radioactive." Putting her own spin on Rihanna's "Stay," she pulled it off as if it's her own.  

"It’s a lot of fun for me and the band because the shows can become monotonous, and this keeps us on our toes," Clarkson told Entertainment Weekly about her tour tradition.

Clarkson began her North American trek on July 11 in Hershey, Penn., where she covered Tori Kelly's "Nobody Love." The 38-date tour continues through Sept. 20.