Choreographer: 'Holmes a brilliant dancer'

Katie Holmes has been described by her choreographer as a "brilliant dancer", it has emerged.

The 30-year-old actress has been confirmed to appear on the 100th episode of Fox's So You Think You Can Dance on July 23.

Holmes, who is expected to channel Judy Garland, will help aid her nonprofit organisation, the Dizzy Feet Foundation, with her song-and-dance number on the show.

Choreographer Mia Michaels told People: "She’s really blossoming into a gorgeous triple-threat star.

"So, I’m excited. I saw clips of it and it's brilliant!"

The Dizzy Feet Foundation offers scholarships and assistance to up-and-coming dancers.