When you hear the familiar whistled tune of the jazz standard, “Sweet Georgia Brown,” you know the Harlem Globetrotters have come to town. After 85 years and 20,000 games, the Globetrotters have become one of the most recognizable sports franchises in the world. Combining athleticism, theatrics and comedy, the team is a fun-loving ambassador for basketball with its ridiculous skills and family-friendly games. In a twist, fans will decide the rules for the game that could affect the final outcome. Expect the slam dunk, the alley-oop and the three-man weave, as well as some other bouncy surprises when the Globetrotters play the Richmond Coliseum on Monday, Dec. 31, at 2 p.m. $20-$106. richmondcoliseum.net.