Gwen Stefani Reunites With No Doubt For Global Citizen Earth Day 2015

Gwen Stefani hits the stage during 2015 Global Citizen Earth Day on the National Mall on Saturday afternoon (April 18) in Washington, DC.

The 45-year-old singer hit the stage with her band No Doubt to perform some of their iconic songs for the event that sets to end extreme poverty and solve climate change.

PHOTOS: Check out the latest pics of Gwen Stefani

Also hitting the stage for the big bash was Chris Martin along with his band Coldplay.

10+ pictures inside of Gwen Stefani and Chris Martin performing during the show…