This Year's Additions To The Rock Hall Of Fame
Since 1986, the Hall has added 323 inductees to its rolls; they include 220 performers, 33 “early influencers” (a category largely composed of rock and roll’s African-American founding mothers and fathers, such as Lead Belly, Robert Johnson and Sister Rosetta Tharpe) and 34 non-performers (generally music-industry executives, but also songwriters, producers and instrument makers). – NPR