Chances are if you've been out in the Mission or at a Critical Mass bike ride, you've seen Fossil Fool the Bike Rapper, aka Paul Freedman, riding his 130-pound Choprical Fish. The fish is a glowing neon bicycle tricked out with an eight-speaker system that often has a woman known as Mafiosa Felice shaking maracas while straddling the passenger seat. When the mood strikes him, often in front of Cafe Revolution on 22nd Street between Mission and Valencia, the Fool will descend from his mobile throne. Getting someone else to pedal to power his iPod and speaker system, the Fool will perform numbers like "I Am a Fossil Fool," "No Bikes Are in the Yard," or the "Boda Boda Rap," inspired by the boda-boda bike taxis in Kenya. It's all about creating the spontaneous community more accessible by bike than by car — "an alternate universe where bikes are cool and cars are lame" — and he says music is the magnet to draw people in.