Jack's done all the summer festivals and the grimmest one was Glastonbury due to his tent being underwater and his girlfriend having no backstage pass!
Jack also talks about how Kylie rang up to ask if she could sing on his album and how he'd like to collaborate with "proper music lover" Damon Albarn.
Then he treats you to a live performance of No Time - even though we gave him a dead basic mic to sing it on!
No Time is about his first proper girlfriend: "I was besotted for all the wrong reasons."