Michelle Bridges @ 2007 ARIA Music Awards
And the Wiki says…
Michelle Bridges is the ‘red team’ personal trainer on the Australian version of The Biggest Loser. She made her first appearance in 2007, on the second series of The Biggest Loser and trained the red team along side Jillian Michaels. When Jillian left half way through the series, Michelle officially took over as red team trainer. It is likely Michelle will continue as red team trainer in 2008. [Wiki]