Lenny Kravitz is tributing one of the greats. Sly Stone died on June 9th at the age of 82. Known for his music that became popular in the '60s and '70s with the band Sly & the Family Stone, he died after a long battle with Chronic Obstructive Pulmonary Disease.

Sly Lives!' filmmaker Ahmir "Questlove" Thompson pays tribute to his documentary subject Sly Stone, who died June 9: "Dared To Be Simple In Most Complex Ways"

Ahmir "Questlove" Thompson, who directed the new documentary “Sly Lives! (aka The Burden of Black Genius),” has shared a remembrance of the subject of his film, Sly Stone. The 82 year-old died of COPD (chronic obstructive pulmonary disease) and other underlying health issues.