Dave Stewart and Joss Stone debuted new material at her mum's Mama Stone's venue in Exeter, South-West England.
Stone tells Britain's Daily Express, "We'd been in the studio for about three to four days and we just wrote loads of songs.”
Stewart added, “... let's try some of them out at your mum's place.”
"It was fun and we were totally blagging it. There was only two of us so we just bounced off each other. We wrote down the ones we thought we could pull off and just went out there and had a bit of a laugh and really enjoyed it. We hope everyone else did."