‘Best Dance Crew’ debuts tonight

So what does Randy Jackson know about dance?

“Quite a bit,” the “American Idol” judge says.

Jackson is executive producer of the new series “America’s Best Dance Crew,” premiering tonight at 10 on MTV.

Teams of five to seven dancers will compete for a $100,000 cash prize. The judges are JC Chasez of N’Sync, aspiring rapper Lil’ Mama and dancer-choreographer Shane Sparks, a judge on “So You Think You Can Dance.”

Hosts are Rachelle Leah and Mario Lopez (who competed on “Dancing With the Stars”).