When she's not cool for the summer or he's not singing karaoke in a car, Demi Lovato and James Corden have other careers and, we'll be honest, they're not very good at it.
Filmed as part of James Corden's The Late Late Show With James Corden, the clip sees Lovato and Corden roaming around Los Angeles delivering singing telegrams to some unsuspecting people and the results are, well, interesting.
First of all, the duo rock up at Sarah's work to sing a country song. Just look at that customers face...
They then descend on Cory for his 25th birthday to deliver a song about mayonnaise.
They then try natural autotune using balloons.
Finally, they head to Dr Engel's office and shave his head.