“Biggest Loser” Brings in Gunn

“Project Runway’s” fashion guru and mentor Tim Gunn is making a special appearance on NBC’s “The Biggest Loser: Couples” on Tuesday, March 18 (8-10 p.m. ET), helping make over the contestants in what has become a fan favorite every season – the makeover episode.

After working so hard to lose weight for 12 weeks, the remaining seven contestants get treated to the ultimate day of pampering with makeovers for all. First, they’re joined by legendary fashion maven Gunn, who helps each of them choose a stylish outfit at Macy’s that flatters their new, skinnier selves.

Next they’re treated to eye-catching new hairstyles so they’ll be looking their best at a runway fashion show that will be photographed for the May issue of Prevention Magazine. Then the contestants strut their stuff – with new clothes and new “dos” – down a fashion show runway, unaware that loved ones are waiting to surprise each one in emotional, heartwarming reunions.

Later, the contestants square off in a vigorous challenge in which they must walk on treadmills, suspended over water, at increasing speeds – and two players battle it out for more than an hour. Then comes a heated elimination round, when another player is sent packing. Alison Sweeney is the host, and Bob Harper and Jillian Michaels also star.