Big Time Rush Big Time Rush

Big Time Rush is celebrating Mother's Day with an episode that introduces James' mother, played by Lisa Rinna.

When Mrs. Diamond, nicknamed the "Estee Lauder of the Midwest," shows up in Palm Woods to take James back home, the band must figure out how to keep him from joining the family business back in Minnesota.

VIDEO: What qualities do the boys of Big Time Rush look for in a girlfriend?

In this exclusive clip from "Big Time Moms," James, Carlos, Kendall and Logan explain to their band manager exactly whom they're up against. Hint: She made one of the guys change his name from Hortense because she just didn't like it.

Big Time Rush airs Saturday at 8/7c on Nickelodeon.