Two of the world's best-known culinary personalities, Rachael Ray and Guy Fieri will lead star-studded teams of amateur cooks in a fun, fast-paced culinary fight to the finish on the new Food Network prime-time series "Rachael vs. Guy Celebrity Cook-Off". Rachael and Guy will serve as coaches and mentors to eight multi-talented celebrities, all of whom are passionate about food and cooking. Divided into Team Rachael and Team Guy, the contestants will face intense weekly challenges that are sure to have them working, fighting and laughing as they race against the clock to prepare elaborate meals for up to 150 guests. The winning and losing teams will be chosen by the guest diners -- and between two bottom-rated contestants from the losing team, one member will be sent home each week. The last celebrity standing at the end of the season will win a cash donation to his or her favorite charity.