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Katie Holmes' SYTYCD Gig: "She Was Amazing"

Fri., Jun. 19, 2009 11:35 AM PDT by Whitney English and Giselle Ugarte

Katie Holmes, Mary Murphy, Nigel Lythgoe

Paul Morigi/ Getty Images, Michael Williams/ FOX

The rumors have officially been confirmed. Katie Holmes is bringing her Broadway skills from the stage to the studio for the final episode of So You Think You Can Dance, a source tells E! News.

"It taped last week," says the on-set source. "It's going to be on the finale. It's a Broadway does Hollywood number. It opens on a Broadway stage and then she walks into a Hollywood studio." The finale airs Aug. 6.

Holmes, who has been rehearsing and dancing for more than a year, was on top of her game, adds the source. "She was amazing. She was such a pro. Her legs are in great shape. She's got a hat and a cane and she's wearing a leotard and tights," the source adds.

Holmes was photographed on Monday on the CBS Studio lot, walking around in a black dress with black tights and her hair pulled back tightly in a bun.

Reps for the show still decline to comment, but host Mary Murphy tells E! News, "We're going to have tons of surprises this season." Mary even hinted at a special performance: "I'm really looking forward to that and the finale as well. Who knows who may dance."

As we previously reported, Katie will be doing a version of Judy Garland's song "Get Happy," choreographed by Tyce Diorio and directed by Nigel Lythgoe.

Is this a good career move for Katie Holmes? Will you tune in? Hit the comments below with your thoughts.