The seventh season of the Australian version of the original NBC reality television series The Biggest Loser, known as The Biggest Loser Australia: Singles, premiered on 23 January 2012 on Network Ten. All four trainers from the previous season (Michelle Bridges, Shannan Ponton, Steve Willis (The Commando) and Tiffiny Hall) returned with Hayley Lewis also returning as host. The season featured contestants competing as teams of four, as with the previous season, but split by age and gender, with Shannan training the under 30 males, The Commando the over 30 males, Tiffiny the under 30 females and Michelle the over 30 females. Season 6 was won by Margie Cummins. The season was announced during the Season 6 finale on 2 May 2011 and was confirmed at the Network TEN 2012 Program Launch on 17 August 2011, originally announced as a second "Families" installment, until rebranded as "Singles" with an emphasis on 'romance'. Production and filming on the season began on 14 November 2011. Host and personalities Host: Hayley Lewis has returned for her third season as host. Trainers: Shannan Ponton, Michelle Bridges, Steve Willis ("The Commando") and Tiffiny Hall all trained in the 2011 season have returned in this year (2012) Game variations Singles: All contestants this season are single, and feel their weight has held them back from a love life. Team Division: The contestants are divided into four teams of four by age and gender, with Shannan training the under 30 males, The Commando the over 30 males, Tiffiny the under 30 females and Michelle the over 30 females. Schedule: For the first three weeks, the show retains its four night a week schedule, but the nights changed to Monday, Tuesday, Wednesday and Thursday. However, from the fourth week onwards, a Friday night show was added, consisting of unseen footage and catch-ups with the latest eliminated contestant. From Week 10, the schedule shifts forward by one day, so the week begins being shown on a Sunday instead of a Monday. The Walk: The Walk returns from its two-year break, and the power of the walk becomes the prize for winning the Contest. Schedule Weeks 1–3 Monday: Conclusion of Major Challenge, Weigh In and Elimination Tuesday: The Contest and the Walk Wednesday: Conclusion of The Walk and Temptation Thursday: Conclusion of Temptation and Beginning of Major Challenge Weeks 4–9 Monday: Conclusion of Major Challenge, Weigh In and Elimination Tuesday: