The album is named for Gaga's father's late sister, and also Ms. Germanotta's middle name, as well as her family's Upper West Side Italian restaurant, Joanne Trattoria ; "She is the woman of my past," Stefani told Zane Lowe.
Joanne will feature production and writing collaborations by Mark Ronson, Tame Impala's Kevin Parker, BloodPop, and also Beck, Florence Welch, Josh Homme, and Hillary Lindsey (who wrote Carrie Underwood's "Jesus, Take The Wheel").
She also told Lowe that the album will be done within the next 48 hours.
"There's definitely a bittersweetness to [finishing the album] this isn't the end just the end of this moment. It's also the beginning of this moment."