Long before Gwen Stefani, 45, and Blake Shelton, 39, had to deal with their failed marriages, they participated in an epic lip sync battle on The Tonight Show With Jimmy Fallon!
RELATED: Blake Shelton and Gwen Stefani Bond Over Their Failed Marriages on the Set of 'The Voice'
So in honor of Flashback Friday, we figured ... why not reminisce about this adorable moment?
(Photo Credit: Getty Images)
See the hilarious segment below:
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