Watch Gwen Stefani Lip-Sync "Call Me Maybe" Against Jimmy Fallon

Kelly Conaboy · 09/18/14 08:20AM

Gwen Stefani and Blake Shelton appeared on the Tonight Show last night—allowing everyone involved to check off "promote this season of The Voice" from their to-do lists—and took part in a lip-sync battle against Jimmy Fallon. Gwen won.