How many people are in the Macy's Thanksgiving Day Parade?

1,500 cheerleaders, dancers, singers and performers; 800 clowns; 15 giant character helium balloons; 35 novelty/ornament balloons, balloonheads and balloonicles; 10 Marching Bands; 24 floats; and a host of celebrity performers.

Details at: http://www.holidayhacks.com/2009/11/03/2009-macy%e2%80%99s-Thanksgiving-day-parade-line-up-and-details/