Leave it to your friends to put your love life on blast. At least that's what Demi Lovato did when she and Nick Jonas joined James Corden for the highly popular segment, "Carpool Karaoke." 

After celebrating 10 years of friendship, Demi teased her buddy for dating both Selena and Miley while Nick was mum about the fact that Demi dated his brother, Joe. They also chatted about his purity ring as well as Demi's love for older men.  

But since it's "Carpool Karaoke," it would only make sense for them to sing. The trio did renditions of Demi's "Heart Attack" and "Stone Cold," Nick's "Close" and DNCE's "Cake by the Ocean." They also did an acappella version of Mr. Jonas' "Jealous." The seamless harmonies make James want the three to form a band, which they test out on the streets and perform Demi's "Confident" for some unsuspecting crowds. It can't get any better than that.

Think Nick and Demi should bring James on tour? Watch the video below and let us know!