Making for quite the sight to be seen, No Doubt opened up the 2012 iHeartRadio Music Festival with a bang on Friday night (September 21).
During the course of their MGM Grand Garden Arena set, Gwen Stefani and co. were joined by a mohawk-rocking P!nk for a rendition of the classic hit "I'm Just a Girl."
With P!nk doing some push-ups on the stage before delving into the lyrics, she later dove in for a steamy girl-on-girl smooch with Miss Stefani.
Following No Doubt at this year's iHeartRadio Music Festival opening day were acts including Miranda Lambert, Usher, Green Day and Rihanna.
