Before radio, music was broadcast via Morse code, which turned everything into a treble-heavy dance music punctuated by demands to stop. Limber up for more-graceful dance moves with today’s Groupon: for $25, you get your choice of 10 group dance classes at Century Dancesport in Tustin (a $100 value).

Century Dancesport's attuned instructors spin and twirl throughout a nearly 6,000-square-foot studio, guiding the limbs of beginning dancers and ballroom ambassadors alike in both classic and modern choreography. A diverse roster of group classes entices beat-keeping feet to hone their rug-cutting capabilities with a choice of 10 classes that can emphasize the elegance of the waltz, the fervency of bachata, and the practicality of the sprinkler. During dancing instruction, teachers fine-tune their pupils' leading and following techniques and encourage students to practice with a variety of partners.

Eddie Alba, owner and dance instructor at Century Dancesport, hosts weekly Wednesday-night dance parties that are free for all students, during which ballroom virtuosos meet fellow danceophiles and debate who was the better pair: Fred and Ginger or Shaq and Kobe.