San Francisco drummer Greg Errico (born September 1, 1948) laid down funky beats with Sly & The Family Stone through the group's early years, including their show-stopping performance at the 1969 Woodstock Music Festival. In 1973, he was recruited by Joe Zawinul to join the ranks of the highly experimental jazz fusion group Weather Report on tour, though he never recorded with the group. Hear a sampling of his playing with both groups.