Betty White's Off Their Rockers

Psy teaches Betty and her pranksters how to dance Gangnam style.

Stunt performer Steve-O participates in sketches with Betty.

Singer Nick Lachey give Betty advice.

Rosie and Marry try out a different selling technique and it looks like Sonia is in trouble with the law again.

Seb learns to twerk and gets tied to a lamppost.

Keith tries his hand at bartering for a new TV.

This week, Real Housewives of Beverly Hills Adrienne Maloof, Camille Grammer and Kyle Richards .

This week, Betty White prepares her house to accommodate special guest Howie Mandel and his germaphobia.

TV host Nick Cannon discovers Betty's dark side.

A senior citizen brings a cooler containing an organ donation into a food court.

Pranks include two seniors asking for the location of a rave.

Tricksters direct traffic in a grocery store and cut loose in an arcade.

Seven-time Emmy Award winner Ed Asner is the special guest on the season two finale.