Singer Gwen Stefani is pouring her heart into new music in the wake of her split from Gavin Rossdale.
The singer, 46, debuted her emotional upcoming single "Used to Love You" during her MasterCard Priceless Surprises concert in New York City, reported People magazine.
"I just want to share a song that I wrote recently," Stefani told fans before singing the powerful number.
"This song is really special," she added.
Stefani belted out her personal lyrics.
"I thought I was the best thing that ever happened to you and I guess nobody taught you how to love."
Stefani and Rossdale - parents to Kingston, nine, Zuma, seven, and Apollo, 19 months - announced their divorce in August after 20 years together and nearly 13 years of marriage.
