The comic icons are scheduled to hold a press conference in West Hollywood Wednesday to announce plans for their "Cheech and Chong: Light Up America" tour.
The duo had nine comedy albums and eight hit films in the 1970s and 1980s.
They were also nominated for four Grammy Awards, winning the Grammy Award for Best Comedy Album with their third album, "Los Cochinos," released in 1973.
"The Big Bamboo," their second album, was the biggest selling comedy record of all time in 1972 and remained so for many years, Cheech and Chong's representatives noted.
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