Mark Erickson has seen Earth, Wind & Fire 6 times.

Earth, Wind & Fire (EW&F or EWF) is an American band whose music spans the genres of jazz, R&B, soul, funk, disco, pop, Latin, and Afro-pop. They are among the best-selling bands of all time, with sales of over 90 million records worldwide. The band was formed in Chicago by Maurice White in 1969, growing out of the Salty Peppers. Prominent members have included Verdine White, Philip Bailey, Ralph Johnson, Larry Dunn, Al McKay, Roland Bautista, Robert Brookins, Sonny Emory, Fred Ravel, Ronnie Laws, Sheldon Reynolds, and Andrew Woolfolk.