(AllHipHop News) Hip-Hop vet Kurupt will join a celebrity group of marijuana supporters as a judge during the 2010 Doesha Cup this Saturday (December 4th) at an undisclosed location in Los Angeles. The Doesha Cup, now it its fifth year, is a private event hosted for California's medial marijuana growers. The annual event is presented by Dr. Ingleweed, who owns the All American Healing dispensary in Inglewood, California. The event is being hosted for valid Proposition 215 patients and caregivers and all performers, vendors, media and attendees must be credentialed for legitimate medical marijuana use. Kurupt, Rodney O and Joe Cooley, The Elevators and Reggae legend Junior Reid will perform for attendees and growers during the event, which is also a competition amongst growers to determine the dispensary with the best medical marijuana. Judges and attendees will sample 15 to 20 strands of medical marijuana, with the best three strands determining the champion. This year's sponsors for Doesha Cup 2010 include The Liberty Bell Temple, Culture Magazine, Cloudz Magazine, Canna Fresh, Compassionate Cannabis Care and Holistic Gourmet Edibles.