What's The Big Frigin' Difference?

Don't let these two almost identical images of Jack Harlow give you a scare! Step out onto center stage and see if you have the sweet action it takes to find the sneaky switches!

The new rapper on the scene -- who was just featured on Lil Nas X's newest album -- was seen on stage during a performance at Marathon Music Works in Nashville, Tennessee earlier this week ... and we have made a few changes to the original pic! Use your talents to see what's poppin' with the differences between these two super similar snaps!