Zayn Malik debuted a new song, "It's You," on Wednesday's The Tonight Show, and the slow, soulful single is a far cry from his sexy single, "Pillowtalk."

Dressed like a private eye in an old film noir, the 23-year-old singer crooned his emotional new song and got a little help from The Roots.

WATCH: Zayn Malik Makes Out With Gigi Hadid in 'Pillowtalk' Music Video

Zayn's heartfelt and beautifully-produced Tonight Show appearance was the former One Direction member's solo TV debut. He was scheduled to make his debut on The Graham Norton Show last month, but Malik ended up canceling that engagement.

For some time, Malik has been promising a more mature, intellectual sound than the light-hearted (and immensely successful) music he was making with 1D. Now, with the debut on "It's You," it seems like his upcoming album Mind of Mine might make good on that promise.

WATCH: Zayn Malik Throws Major Shade at One Direction, Says He Left to Make '#RealMusic'

Speaking of his new album, host Jimmy Fallon also gave fans a look at the cover art for Malik’s highly anticipated album and it, too, is a far cry from the shirtless cover art Malik released for "Pillowtalk" back in January.

On Jan. 28, Malik premiered the music video for "Pillowtalk," in which he passionately makes out with girlfriend Gigi Hadid. Check out the video below for more.

Related Gallery

Quitting the Band: Musicians Who Left Popular Groups