10/15/2009 at 12:00 AM EDT
Look who's coming to Project Runway
After guest judging stints from Eva Longoria Parker
, Rebecca Romijn Lindsay Lohan
and other stylish stars, Christina Aguilera
will take a turn, joining Heidi Klum
and company (Nina Garcia
will also be back!) for tonight's episode on Lifetime (10 p.m. EST).
Also coming to play, legendary costume designer Bob Macke
will give the remaining designers the challenge of creating an elaborate stage outfit for the Grammy-winning singer, whose style has varied over the years from the lingerie of "Lady Marmalade" to the chaps of "Dirrty" to the pinup look of "Candyman."Tell us: Who will rock the challenge? And who might hit a sour note?