50 Cent has always had a sense of humor, so when it came time for him to appear upside down during Sunday night’s Super Bowl halftime show, it was easy to predict the jokes were soon to come.

After his electric performance of “In Da Club”—which took place between sets by Snoop Dogg, Dr. Dre, Eminem, Kendrick Lamar, and Mary J. Blige—Fif took to Instagram to share a few memes about his surprise appearance.

One of 50’s posts included the ever-iconic image of a kid concentrating heavily in class with a vein popping out of his head, only flipped upside down with the caption, “50 waitin.”