Justin Timberlake recently treated fans to a special acoustic rendition of Selfish while recovering from the flu.

Taking to Instagram on Saturday, the 43-year-old singer posted an acoustic version of his new single Selfish, despite battling the flu.

Wearing a stylish cream cardigan and playing the guitar, the ex-NSYNC member sang his inaugural solo song since 2018.

“Still getting over the flu which makes it silly to sing so excuse the raspy voice but messing around with an acoustic version of SELFISH,” he wrote in the caption.

The acoustic performance follows a moment in Justin Timberlake's New York concert where he seemed to make a subtle comment referencing his former partner Britney Spears, “I’'d like to take this opportunity to apologise, to absolutely f***ing nobody.”

Released on January 25, the track has been showcased in various performances, including appearances on Saturday Night Live, a hometown concert in Memphis, a lively collaboration with Jimmy Fallon and The Roots featuring classroom instruments, and a complimentary show for fans at Irving Plaza in New York City.

Scheduled for release on March 18, Everything I Thought It Was marks Justin Timberlake's latest album since 2018's Man of the Woods. In a recent discussion with Zane Lowe on Apple Music 1 about Selfish.

Timberlake expressed his aspiration for the upcoming album to offer fans a genuine insight into his life.

"I was able, on some of the songs, to look back at the past and have a real, not a refracted perspective of what it was because they always say ... you always hear that thing about, well, there's never any truth, there's just everybody's perspective of what happened," he said.

"But to really look at it and be able to metabolize and verbalize my perspective on it, I don't think I've ever really done that before," Timberlake continued.