VIDEO: George Lopez Jokes About Bristol Palin's Weight

Nov. 18 2010, Published 9:33 a.m. ET

Outspoken Dancing With The Stars judge Carrie Anne Inaba appeared on Lopez Tonight Wednesday, where she talked about this season’s unlikely success story that is Bristol Palin, setting up sharp-tongued host George Lopez up for a whopper of a punch line.

Watch the video on RadarOnline.com

The sexy 42-year-old dancing judge said a large part of Palin's success can be attributed to her bubbly personality, as "she's sort of like the average, everyday girl next door.

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"I think everybody's voting for her because they can relate to her," Inaba said.

Lopez then went there -- there as in Bristol's physique -- asking Inaba how the 20-year-old Alaskan has managed to gain 20 pounds since the beginning of the season.

"I don't know, we don't weigh them in," a cringing Inaba said, to which Lopez replied, "I mean what are they waxing the floor there with - corn oil?"

Palin, Kyle Massey and Jennifer Grey will clash for the crown when Dancing With The Stars' finals week begins on ABC Monday at 8/7c; Lopez Tonight airs on TBS weeknights at 12/11c.