Katie Holmes Does Judy Garland On So You Think You Can Dance

Mrs. Tom Cruise is kicking up her heels for So You Think You Can Dance.

Us Magazine reports that Katie Holmes will perform Judy Garland's "Get Happy" from the 1950 musical "Summer Stock," complete with black velvet fedora, nylon stockings, patent-leather heels and body-hugging outfit. She was spotted rehearsing with eight male dancers clad in suits and ties.

Holmes could appear on the Fox reality show as early as this week, according to the magazine. However, the performance was originally planned for SYTYCD's 100th episode, to broadcast July 8.