For Julia Fox, life is a catwalk. The looks she puts together — cutting off the belt loops of her jeans or creating a top made from tartan ties sewed together — are almost always guaranteed to turn heads and be photographed.

Alongside Law Roach, Fox is a host and judge of the new E! fashion competition show “OMG Fashun,” premiering Monday. Roach stepped back from styling celebrity clients last year but still works with select people like Zendaya, who is co-hosting Monday’s Met Gala and recently turned heads with her looks for both the “Challengers” and “Dune: Part Two” press tours.

In each episode, contestants — or “disrupters” as they’re called — are challenged to reuse materials and upcycle fashion for unique looks meant to impress Roach, Fox and a guest judge. The winner walks away with $10,000 and Fox models their design.

Executives at Scout Productions, which produces “OMG Fashun,” say the show works because it fits with both hosts’ fashion philosophies. Roach likes to buy archival pieces from designers to give clothing a second life. Fox is against environmentally unfriendly fast fashion, instead stressing working with what you have. That extends to production meetings.