2. Everything Old is New Again (2011)

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.

Release date: 2011-04-13