We know that Jimmy Fallon and Justin Timberlake are best friends, but for some reason the singer wrote some theme songs for the man that follows his BFF! That’s right, he is so nsync with Late Night with Seth Meyers that he created a few catchy jingles for him. Then when he was done, he presented it to the host. How did it go? Let’s just say Meyers called security on the new dad. Can’t say I blame him, do you?