Bruno Mars and Anderson .Paak’s Silk Sonic song ‘Leave the Door Open’ is No. 1 pop hit

Bruno Mars has another hit song under his belt.

This time though, it’s not solo.

The Grammy Award-winning pop crooner’s very first recording collaboration with fellow Grammy winner Anderson .Paak – under the moniker Silk Sonic – has become a No. 1 pop hit.

The new outfit’s debut outing “Leave the Door Open,” the first release from the duo, has made it to the top of the Billboard Hot 100 this week.

The two gave the retro-soul song a much-buzzed about premiere at the 63rd Annual Grammy Awards on March 14.

Produced by Mars with D’Mile, “Leave the Door Open” drew 21.5 million U.S. streams and sold 28,600 copies, downloads and CDs combined in the week ending April 8, according to data provided to Billboard. It also attracted 59.1 million radio airplay audience impressions in the week ending April 11.

It marks Paak’s very first and Bruno’s eighth Hot 100 chart-topper.

The infectious track has made the fastest rise to the top out of all of the Atlantic Records-signed superstar previous hits, hitting the pinnacle in just five weeks.

Previously, Mars’ collaboration with Mark Ronson, “Uptown Funk!” took eight weeks to hit the top of the pops. “That’s What I Like,” “Just The Way You Are,” “Grenade,” “Locked Out Of Heaven,” “When I Was Your Man,” and “Nothin’ On You” with B.o.B also reached the summit.

“Leave the Door Open” is also the first song in the history of the 62 years of the Hot 100 to have the word “door” in its title.

The closest any other song previously came was No. 2 with 1970 1/4 u2032s “Lookin’ Out My Back Door” by Creedence Clearwater Revival.