They had a big hit song, "Jump" — video at the link — and they made it a trend to wear your pants backwards. The 2 boys in Kriss Kross were 13 years old, and my sons were 11 and 9, back in 1992 when that song seemed to be every kid's favorite song. I can remember sitting in the audience for a show at school where various kids — pants on backwards — attempted to dance like those 2 boys. Sample lyrics:
I'm the Mac and I'm bad give you something that you never had20 years ago.
I'll make ya jump jump wiggle and shake your rump
Cause I'll be kicking the flavor that makes you wanna jump
How high? Real high
Cause I'm just so fly
A young loveable, huggable type of guy