Katie Holmes Hollywood dance studio

Well, at least we think she is! Katie Holmes looked beat after a late-night dance class in Hollywood.

Tom Cruise's wifey was sporting tights, a hoodie and brown suede booties after getting her boogie on, and even though she was glistening with sweat, she still managed to give us a grin.

Suri's 33-year-old mommy definitely knows how to keep her dancer's body in fine form!