Earlier this summer, Maroon 5 revealed that No Doubt‘s Gwen Stefani will be featured in its new album V. Now, guitarist James Valentine reveals the song’s title, “My Heart Is Open,” and that it was co-written by Sia.

“A lot of times when you meet your idols it’s a letdown, but it’s the opposite case with Gwen, apparently. 'It's cool for all of us to have Stefani on the record. And Adam won't shut up about how cool she is as a person,” Valentine said.