The 1960s and '70s in the U.S. were all about peace, (free) love, and a smorgasbord of drugs. Music was evolving in to something bigger than religion, and sticking it to the man was the mentality. Communal living and acoustic guitar playing on city streets were cool, and so were bell bottom jeans, tie-dye shirts, and the Frito Bandito.

But we're not reflecting on the hippie era for no good reason. Today also happens to be the 69th birthday of one of the most influential flower children of them all: Joni Mitchell. So in honor of her and other free-spirited beauties everywhere, enjoy our list of the 10 hottest celebrity hippies of all time. Peace, love, and hotness. 

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