Matt Lauer is having a ball pranking Ellen. Well, thousands of balls.

Ellen has been pranking the Today Show cast — especially Matt Lauer — for quite some time. This week, Lauer finally pranked her back, filling her car with thousands of ping pong balls while she was shooting her show.

The best part of this is seeing a legitimately surprised Ellen wading through a flood of ping pong balls. The worst part is then hearing Lauer stifle his own laughter to say "You have to admit, it took a lot of balls to pull off this prank." He had obviously been sitting on this terrible joke for weeks and was SO excited to say it.