addison, kensly and savannah harris were discharged from a houston hospital on monday.ber 1st, they weighed between 3 pounds and 3 pounds, 8 ounces. >> they are all 5 pounds. at least it's 15 pounds outside of me, instead of inside of me. >> the parents are getting used to not sleeping. it was the first set of identical triplets the hospital delivered since it opened in 1963. >>> a clip has received more than 77,000 likes on facebook. mark strassmann reports. ♪ >> reporter: this is a hip-hop dance challenge that you can't do it, like me. and, sure, the kids are magic. but you also wonder who is that middle-aged dude who can do it like them? >> once we started, i said, i'm so bad, i said, let's just film y'all and the kids are no, mr. clark, you got to be in it! >> reporter: ron clark, a former teacher of the year, founded the ron clark academy in 2007. it's a profit nonprivate middle school. part hogwarts, part harvard. learning comes to life at work speed here for kids who are academically diversed and often lower income. the viral video stars including seventh grader