Demi Lovato and Nick Jonas are co-headlining one of the hottest tours of the summer, and the pair crashed James Corden’s most popular Late Late Show segment, ‘Carpool Karaoke,’ to preview the tour… as well as discuss Nick’s dating history and perform on a sidewalk for passerby!

Along with Lovato hits like “Stone Cold” and “Heart Attack,” as well as Jonas tracks like “Chains” and “Close,” the trio discusses the craziest fan-stalker experience of the Jonas Brothers days, whether or not Nick has ever been tied up, and, of course, the purity rings. They also cover Joe Jonas’ band DNCE, and Nick declares of “Cake By The Ocean,” “It’s about sex!”

Eventually, Demi, James and Nick hit the street and start busking while playing Demi’s “Confident.” How many fans are delighted by these pop stars (and talk-show host)? You’ll have to watch and find out.

Click here to watch the previous ‘Carpool Karaoke,’ which featured Gwen Stefani and special guests George Clooney and Julia Roberts.