Offset was a backup dancer as a kid, he danced professionally in a Whitney Houston and a TLC music video—according to his mom. There's no sign of Offset's TLC appearance yet but at 0:51 & 3:34, you can see a 10-year-old Kiari Cephus—also known as—Offset dancing in the music video for the late Whitney Houston's 2002 “Whatchulookinat” from her fifth studio album, Just Whitney.
After his mother revealed this in an interview with The New York Times, Offset shared a behind-the-scenes photo of him bac in 2002 on set with Whitney Houston. He posted the photo with the caption “I BEEN DOING THIS ENTERTAINMENT GOD MY WITNESS WHICH ONE IS ME????”.