After Ellen's "Fifty Shades" prank, Lauer got her back by filling her car with ping pong balls.
Ellen and Justin Bieber gave fans quite a shock when they hid in a women's bathroom stall and recorded people's reactions as they scared the bejesus out of, as DeGeneres put it, "some either lucky or unfortunate women."
Ellen proved once and for all that #TheDress is indeed blue and black (even though it is clearly white and gold), when she scored the first ever interview with the owner of said color-challenged dress.
We learned a whole lot we never knew about Justin Bieber and Madonna when Ellen had them play popular party game "Never Have I Ever."
Hint: All three copped to fooling around in a bathroom during a party, while Bieber was the only one to deny ever having phone sex.