Food Network star Guy Fieri is hosting a star-studded fundraiser next month in Sonoma County to support chef Shirley Chung. Chung, a former contestant on “Top Chef,” was diagnosed with stage four tongue cancer in May. Tickets range from $2,500 to $4,500, with proceeds going towards Chung’s medical bills. The Platinum Ticket includes a pre-dinner party at The Matheson in Healdsburg.