Floyd Cardoz

Top Chef Masters is back with a brand new host, new judge and a new format - so why not start the competition off with something familiar, the most notorious of all Top Chef challenges, Restaurant Wars.These master chefs have opened their share of award-winning restaurants, but nothing could have prepared them for the pressure that's on now. With their egos on the line, the knives come out right out of the gate.

The masters are in for a treat this week when two high-profile celebrities visit the top chef kitchen. Pop Star and trained chef, Kelis, drops by to judge a very meaty quickfire challenge and then "Mad Men" actress, Christina Hendricks and her husband, actor Geoffry Arend, enlist the help of the cheftestants in a special 60s themed elimination challenge.

Eating healthy is a challenge that people face every day. For this week's elimination challenge, the cheftestants must prove nutritious food can still taste good. The remaining masters will be broken up into three teams of three to prepare breakfast, lunch and dinner.

In the final challenge - the tables are turned when host Curtis Stone prepares a meal for the remaining chefs. Then the three finalists must create a three course meal based on important memories throughout their lives and careers. Guests for the finale include: Tom Colicchio, Jon Waxman, Rick Moonen, Susan Feniger, Susur Lee, as well as Danyelle Freeman and Alan Systma. The judges include: Ruth Reichl, James Oseland and guest Gael Greene.

In this week's quickfire challenge the chefs must use each of their five senses to identify mystery ingredients - however they can only use one of their senses at time. In the elimination challenge, the masters help a man propose to his unsuspecting girlfriend on her favorite show, "Top Chef Masters." In a six-course meal, the chefs must create dishes that reflect different stages of the couple's relationship, but could one bad dish ruin the whole plan?