Ashton Kutcher and Mila Kunis recently stole the spotlight during a Backstreet Boys concert in Las Vegas, and fans can’t stop talking about their adorable PDA moment. The duo proved they’re still one of the most fun-loving couples in the industry as they danced and sang along to the iconic boy band’s biggest hits.

"They stole the show on this one with a little fun. They were both gracious to the crowd and fans around them," a fan said of the couple.