Country music star Carrie Underwood is also a big fan of Wiz Khalifa and Charlie Puth's hit song "See You Again," so much that she decided to do a mashup with her own song of the same title during a live performance over the week, MTV News reported.

The new mommy made an appearance at the Big Barrel Country Music Festival in Dover, Delaware over the weekend. It was one of her first performances since giving birth to her son Isaiah in February, according to country music site The Boot. During her set, the American Idol winner went into the intro of her song "See You Again," her 2013 single that reached the top 10 on both Country Airplay and Hot Country Songs Billboard charts.

But Underwood surprised fans right after the first chorus and instead of going into her second verse, she started singing the lyrics to Charlie Puth's chorus. The emotional tribute song was written by Puth and rapper Wiz Khalifa for the action film "Furious 7" in memory of actor Paul Walker, and it's been at the top of Billboard's Hot 100 chart for the past 10 weeks.

After singing the recognizable first few bars in her distinctive voice, Underwood attempted to tackle Khalifa's flow on the first verse. She started out strong with the first few lines and her fans screamed out in appreciation, but then she stumbled and gave up. Watch her performance in the video below.