A part of Los Angeles history since 1972, the Rainbow Bar & Grill, featured in many songs and music videos, has been a home away from home of many rock legends. The music venue Whisky a Go Go was the sounding ground for musicians with dreams of sex, drugs, and rock and roll. Whisky a Go Go was the place rock stars came to see other rock stars perform, and the Rainbow was where they “networked.” A place that the Prince of Darkness—Ozzy Osbourne—remembered walking in but never remembered leaving, the…