Jimmy Fallon celebrated his 48th birthday on 19 September, and amid a myriad of well wishes from friends, family, and fans, one in particular stood out.MORE: Nicole Kidman and Jimmy Fallon recall their awkward 'first date' in hilarious throwback videoThe late night host got a public shout-out from none other than Justin Timberlake, also one of his closest friends and frequent comedic collaborator.VIDEO: Jimmy Fallon causes hilarious argument with Maury announcementThe singer made it an internet love affair by sharing a clip of Jimmy on stage performing while he did what any dedicated partner or friend would do by recording him from every flattering angle possible.Justin left no stone unturned as he filmed his friend from the back and closer to the stage, at one point even getting him to laugh as he brought his phone way up to the mic.MORE: Drew Barrymore reveals on her show how she met best friend Jimmy Fallon and how she's responsible for his marriageHis video came with an appreciative and quite hilarious message too, as he wrote: "Happy birthday @jimmyfallon - from your Instagram boyfriend. "I'm so proud of the man you've become. My phone could never capture the beauty of your aura.