Jimmy Fallon [1] had to remind his guests that they were on a "family show" when he played Pictionary with LL Cool J, Rose Byrne, and Big Sean on The Tonight Show on Monday. At one point, LL Cool J admitted that drawing isn't his strong suit, and when he attempted to draw a tattoo for the group, the "arm" he drew looked an awful lot like another body part. Watch the group's hilarious reaction to the moment, then check out more must-see viral videos [2], including that time Jennifer Hudson sang her fast-food orders [3].