Jay Leno and Jimmy Fallon team to sing of "Tonight" turmoil

Jay Leno and Jimmy Fallon pose backstage at the 70th Annual Golden Globe Awards in Beverly Hills, Calif. on Jan. 13, 2013.
Jordan Strauss/AP

Jay Leno and Jimmy Fallon poked fun at the late-night rumors swirling around them in a music video that aired between their back-to-back NBC shows on Monday night.

In a spoof of the romantic ballad "Tonight" from "West Side Story," Leno, who was backstage at the "Tonight" show on the West Coast, and Fallon, in his "Late Night" office in New York, serenaded each other by cell phone.

Fallon asked Leno if they're still friends, despite reports that he will soon displace Leno as "Tonight" host. "Of course," Leno assured him.

Then the number began, with the duo warbling, "Tonight, tonight, who's gonna host 'Tonight'? ... Why do they say we fight?"

And the big finish: "Tonight, tonight, who cares who hosts 'Tonight'? People just watch online the next day!"

Watch the video below: