FILE - In this Thursday, Feb. 18, 2010, file photo, actor-comedian Cheech Marin joins Cheryl Shuman, executive director of NORML90210, the Beverly Hills chapter of the National Organization for the Reform of Marijuana Laws, as they appear at a news conference to launch a partnership with HempCon.com and Medical Marijuana Show, at the Los Angeles Convention Center. Country singer Willie Nelson, the children of the late reggae icon Bob Marley and comedian Whoopi Goldberg are just a few of the growing number of celebrities publicly jumping into the marijuana industry and eyeing the California pot market. (AP Photo/Reed Saxon, File)