Going into Monday's premiere of Dancing With the Stars: All-Stars, returning contestant Kirstie Alley already has her eyes on a prize -- but it's not the coveted mirror ball trophy!

"I don't give a you-know-what about the mirror ball, I want to just be a size zero like the other girls on the show," Alley, 61, reasons in a new video interview alongside her pro partner Maksim Chmerkovskiy, with whom she also competed in 2011 on DWTS' 12th season. "Just for five minutes -- I don't even care if the next day I balloon up to a two."

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All kidding aside, Alley credits Dancing With the Stars with helping her adopt a healthier lifestyle. "I'm starting off 10 pounds skinner than I was at the end of the whole charade [on season 12]," the actress -- who developed her own weight loss program Organic Liaison in 2010 -- admits.

Alley, who came in second place on DWTS in 2011, famously shed a reported 100 pounds through her stint on ABC's series, going from a size 14 to a 6.

Dancing With the Stars: All-Stars premieres Monday at 8 p.m. (EST) on ABC.

This article originally appeared on Usmagazine.com: Kirstie Alley on DWTS: All-Stars: I Just Want to Become a "Size Zero"