From the show's website:
NATIONAL DANCE DAY (is) a grassroots initiative that encourages the nation, young and old, to move! Individuals, families, organizations and communities from across the nation come together through their creative expression in dance. Any style of dance is welcome and imagination is recommended in order to get the most out of this celebratory day.It's often a flash mob experience, you can meet with people at any Six Flags or anyplace else you like. Read more at Fox or DizzyFeet.
Nigel Lythgoe said on tonight's results show of SYTYCD that this year they have three routines of varying difficulty. Tabitha and Napoleon choreographed the most difficult routine, which is below, and it's a pretty fast HipHop number.
Mary Murphy choreographed the easy routine, a salsa. See below.
And Robin Antin choreographed the one of middle intensity.
Oh, and tonight on the results show, Ashley Rich and Chris Koehl went home.