See Justin Timberlake's Hilarious Comment on Jimmy Fallon's Version of a Viral Challenge

Iconic singer Justin Timberlake commented hilariously on his bestie, comedian Jimmy Fallon's response to the “how it started, how it’s going” viral challenge.

The ongoing bromance between Jimmy Fallon and Justin Timberlake reached a new level of commitment when the comedian joined the “how it started, how it’s going” viral challenge.

The idea of the challenge is to post a throwback snap from the beginning of a career, or relationship, and pair it with a recent one which shows how life has progressed.

THE CHALLENGE

To answer the challenge, Fallon chose to share a photo of himself in New York, in his "Saturday Night Live Days," and paired it with a photo of himself with his wife Nancy Juvonen, and their two daughters Winnie, 7, and Frances, 5, plus the family pooch.

The whole family is sitting on the porch smiling happily at the camera while hanging on the table in front of Fallon is a hand-lettered sign that reads "The Tonight Show Starring Jimmy Fallon."

On the surface, the message is: from lonely novice comedian to happily married dad with his own TV show. But what some fans noticed is a subtle tribute to one of Fallon's biggest buddies, Justin Timberlake.

Clutched in Fallon's hand is a coffee mug with Timberlake's face printed on it, and the "Can't Stop The Feeling" singer couldn't help commenting on his subtle inclusion in the family portrait.

Timberlake and Fallon have now released their own hilarious version of the "Quarantine Remix"

THE BROMANCE

Fallon married Nancy in 2007, and Timberlake married the stunning Jessica Biel in 2012, but the bromance between the two men predates their finding their soulmates.

The two met in 2002, backstage at the MTV Video Music Awards. It was a big moment for the comedian and the singer. Timberlake, who had started out as a vocalist in the boy band NSYNC, was performing as a solo artist for the first time.

For Fallon, it was his debut as the host of the MTV Video Music Awards, and an opportunity to consolidate his growing reputation as a comedian outside of "Saturday Night Live." He revealed:

"I was like pacing, and I'm like, 'I'm so nervous! I hope this hosting thing goes well because you know, if I host this and that's my career.'"

The evening was a success on a personal as well as a professional level for both men, who set the foundations for a friendship now well into its second decade.

Timberlake and Fallon have now released their own hilarious version of the "Quarantine Remix," shot in their own homes, and, of course, featuring the now-famous mug with the singer's portrait.