Grab your dancing shoes and head downtown to join choreographers from So You Think You Can Dance for this year's National Dance Day. Founded by SYTYCD's Nigel Lythgoe and Dizzy Feet Foundation, its free events will have feet flying in several U.S. cities. In L.A., the Music Center is a co-sponsor for an all-day event inviting everyone, no matter their age or agility, to enjoy the chance to dance as the action moves from Grand Park to the fountains to the Music Center Plaza. But first! Go online (musiccenter.org/ndd) to learn the routines, which range from easy to advanced. Then on Saturday, starting at 10 a.m., join the dancing throngs in Grand Park led by Lythgoe and SYTYCD choreographer Chris Scott. At noon, cool down at the Grand Park fountain as Baby Loves Disco hosts a family-friendly dance party, or mosey over to the Music Center and spend the afternoon learning repertoire in specific styles from top-notch local companies including CONTRA-TIEMPO (urban Latin, from 12:15 to 1 p.m.), Lula Washington Dance Theatre (contemporary/Afro-Cuban, from 1:15 to 2 p.m.), and Culture Shock (hip-hop/street dance, from 2 to 3:15 p.m.). Now in its third year, the day brings so much fun, it's easy to forget that its goal is to highlight the health and wellness benefits of exercising through dance. Dancers know that already; National Dance Day lets the rest of us in on the secret. Grand Park, 200 N. Grand Ave., dwntwn., and the Music Center Plaza, 135 N. Grand Ave., dwntwn.; Sat., July 26, 10 a.m.-3 p.m.; free. musiccenter.org/ndd.