Holmes Will Dance on 'SYTYCD'

Katie Holmes will dance on 'So You Think You Can Dance'

After weeks of speculation, it's official! On Wednesday's "So You Think You Can Dance," judge Nigel Lythgoe was proud to announce Katie Holmes will grace the stage for the show's 100th episode.

Holmes will dance July 23 in a tribute to Judy Garland choreographed by Tyce Diorio. The actress plans to donate her entire appearance fee to the Dizzy Feet Foundation.

Lythgoe, "Dancing with the Stars" judge Carrie Ann Inaba and Hollywood producer Adam Shankman founded Dizzy Feet with Holmes to provide scholarship opportunities for underprivileged dancers.