Chaz Bono toned up for his big debut on "Dancing With The Stars" by hitting the gym in West Hollywood Saturday.
TMZ broke the story ... Chaz will be a celebrity contestant on the show and will be paired with a female dancer ... a stroke of genius on the part of the producers.
Partially covered by a tank top and tattoos, Chaz kept it healthy with bottled water to beat the heat.
8/28/2011 6:00 AM PDT BY TMZ STAFF
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