NEW YORK � So Katie Holmes thinks she can dance � and in few weeks, she�ll display her moves before a discriminating audience.

Nigel Lythgoe, who is the producer of Fox�s �So You Think You Can Dance,� confirms the 30-year-old actress will perform for the reality contest�s 100th episode, airing July 23.
Holmes will pay homage to Judy Garland. In a taped number, she�ll sing and dance to the Garland classic �Get Happy.�
Holmes� TV cameo is meant to promote the new foundation she launched with Lythgoe and �Dancing With the Stars� judge Carrie Ann Inaba.
The nonprofit, called Dizzy Feet, aims to support dance education and programs, and talented dancers who can�t afford training.
A Hawaii contestant, Kupono Aweau, learns his fate tonight during the dance show's elimination rounds.