Well, this just sets our ’90s/’00s musical hearts aflutter.

During No Doubt’s set at the iHeartRadio Music Festival in Las Vegas on September 21, the band broke out its 1995 hit single, “Just a Girl,” with a special surprise guest. Frontwoman Gwen Stefani called out pop singer Pink to sing to join her in finishing the tune.

While Pink’s been going pretty strong since she emerged on the scene in 2000, she showed no hesitation in bowing down to her predecessor in front of the MGM Grand audience.

Meanwhile, No Doubt is working on making a comeback after releasing “Settle Down,” its first single in ten years, with the full album, “Push and Shove,” set to be released tomorrow.