To celebrate, why not watch Gwen Stefani and Blake Shelton lip-sync a duet of "Endless Love?"
The pair hit The Tonight Show Wednesday to take on Jimmy Fallon in the show's recurring "Lip-Sync Battle" segment.
Song selection ranged from "Burn" to "Puttin' on the Ritz" and "Call Me Maybe." But it was Shelton and Stefani's gender-swapped version of "Endless Love" – Stefani sang Lionel Richie's part, Shelton sang Diana Ross's – that really won the evening.
Check out the full clip from the segment below, and be sure to watch the seventh season of The Voice when it premieres Sept. 22 on NBC.