Overview: The beginning of the third heat week sees five more celebrities enter the MasterChef kitchen, undertaking three tough culinary challenges in a bid to prove themselves to judges John Torode and Gregg Wallace. Trying to impress are former Pussycat Doll Kimberly Wyatt, actor Craig Gazey, TV presenters Andy Akinwolere and Rylan Clark and choreographer Arlene Phillips.