Demi Lovato Hilariously Grills Nick Jonas About His Dating History During Carpool Karaoke

After being teased with short clips and photos for a few weeks now, Demi Lovato and Nick Jonas's Carpool Karaoke session is finally here! On Monday, the former Disney Channel costars, who revealed they are currently celebrating 10 years of friendship, helped Late Late Show host James Corden get to work on time by sharing a ride. Not only did they sing some of their greatest hits, including "Chains" and "Stone Cold," but they also got brutally honest about their dating histories with each other's best friends (and relatives!). Demi even grilled Nick about his on-again, off-again romances with Miley Cyrus and Selena Gomez. But one of the best parts had to be when they switched it up from past Carpool Karaoke sessions and stepped out of the car for an acoustic performance in the streets of LA. Check it all out above!