During Aziz Ansari’s new standup special “Dangerously Delicious,” he tell calls into question whether 50 Cent knows the difference between a grape and a grapefruit.

The setup for Ansari’s joke is as follows: the comic is eating at his favorite New York restaurant, when he spots 50 Cent eating nearby, and overhears the rapper order a grapefruit soda.

“The waiter brings him a grapefruit soda, and then 50 Cent said the greatest thing anyone could ever say when they see a grapefruit soda,” Ansari explains. “He looks at the waiter and goes ‘Why isn’t this purple?'”

I really wonder if this is true, probably not. I mean who doesn’t know what a grapefruit is?