We all know that Lady Gaga was the half time performer at Super Bowl LI, and the general consensus is that she did a fantastic job.
However in the past we know that wardrobe malfunctions and "nip slips" have occurred during the Super Bowl, but they's done a good job making sure they don't happen. Until the camera panned to Chrissy Teigen and her husband John Legend watching the game.
Chrissy was in a very see-through shirt and well, one of her nips....slipped. See below.