Justin Timberlake on His Illegal Voting-Booth Selfie: "I Had No Idea"

Justin Timberlake - Getty - H 2016
Getty Images

Justin Timberlake - Getty - H 2016

"I recently voted — super quiet, under the radar," Timberlake quipped on 'The Tonight Show' of his headline-making mistake.

Justin Timberlake won't be taking any more selfies at the voting booth.

The actor-singer, who was on Wednesday night's The Tonight Show With Jimmy Fallon to promote his upcoming movie, Trolls, addressed his headline-making gaffe.

"I recently voted — super quiet, under the radar," Timberlake quipped, adding: "No one even knew."

Timberlake had flown from California to Tennessee to vote early, and on Monday he posted a picture of himself at the voting booth on Instagram, noting that if he could make that effort, then there are "no excuses, my good people!"

But unbeknown to Timberlake, a Tennessee law that took effect earlier this year bars voters from taking photographs or shooting video while inside a polling location.

On The Tonight Show, he encouraged people to vote but not follow in his selfie-taking footsteps.

"Get out and vote … but don't take a picture of yourself in the — I had no idea!" he said. "I was like, 'This is gonna be great; I'm gonna inspire people to vote!'"

Timberlake lives in California but grew up in the Memphis area and owns property near Nashville. The Shelby County District Attorney's office has said Timberlake will not face any consequences for the unintentional mistake: "No one in our office is currently investigating this matter nor will we be using our limited resources to do so."

Fallon and Timberlake also sang Alanis Morissette's "Ironic" (watch it here) and played a "best friends challenge" game (watch below).

The Associated Press contributed to this report.