Lady Gaga has gone back to her roots with the roll-out of her forthcoming album Joanne, which is set for delivery on October 21. This week, the pop singer opened her three-date dive bar tour in Nashville, where she debuted three songs from the new project. You can now hear 'Sinner's Prayer,' 'A-Yo' as well as live and studio quality versions of 'Million Reasons,' which is her next official single. Listen and watch below.