Justin Timberlake Performs Acoustic Version of 'Selfish' While Overcoming Flu: 'Excuse the Raspy Voice'

Justin Timberlake is under the weather but still hard at work promoting his new song 'Selfish'.

The pop star posted a video of himself performing an acoustic version of the single on Instagram on Saturday (February 3).

“Still getting over the flu which makes it stupid to sing, excuse the rough voice but you're messing with an acoustic version of SELFISH,” Timberlake wrote to fans.

In the clip, Timberlake offered up a quiet, stripped-down take on “Selfish” on acoustic guitar.

JT has performed “Selfish,” his first solo release in more than five years, multiple times since its Jan. 25 release.

He made his live debut at a free concert in his hometown of Memphis on January 19th. He then played a clip of himself with Jimmy Fallon and The Roots on the classroom instruments for The Tonight Show on January 25, and brought the full track to SNL scene on January 27.

Timberlake also played “Selfish” for the crowd during a one-night only show on Jan. 31 at New York's Irving Plaza, a concert that made headlines when he introduced his 2002 hit “Cry Me a River,” saying, ” I would like to take this opportunity to apologize to anyone. “Cry Me a River” is believed to be about his split from Britney Spears, who he dated from 1999 to 2002.

“Someone told me someone was talking about me in the streets,” Spears apparently wrote in response on Instagram. “Do you want to take this to court or are you going to go home crying to your mom like you did last time??? I'm not sorry!!!”

Timberlake's remark came after Spears appeared to apologize for calling him out in her memoir, The Woman in Me, and praised his new single. “I want to apologize for some of the things I wrote about in my book. If I offended any of the people I truly care about, I am deeply sorry,” Spears wrote in a since-deleted post without naming names, before adding: “I'm so in love with Justin Timberlake's new song 'Selfish.' It's so good and how come every time I see Justin and Jimmy together I laugh so hard???”

Check out Timberlake's acoustic performance of “Selfish” in the Instagram video below. He will begin touring on April 29 in support of his upcoming sixth solo album, Everything I thought it was.