Michael Costello brought in Gigi Gorgeous to strut her stuff down the catwalk, but first she had to have loads and loads of extensions applied. In a true "make it work" moment, lead stylist for NuMe, Peter Gray, called in pretty much all the extensions in the city and began securing them to her head. As we expected, he had some good advice on how to make sure they stay in place.

"I like to use a tiny bit of hairspray at the root and then backcomb with a very fine-toothed comb on top of the hairspray right at the root. If you just backcomb the hair without hairspray, it tends to damage the hair or the root, which is never good. It also helps create a little more texture there so that the extensions have something to hold on to," he says. "Also, I like to use a volumizer at the root. I'm using NuMe Root Werk, which is designed to give you more volume, but the product will also give you more hold. I like that it's not too tough — it's not gluey, crusty and it doesn't go powdery at all."

Image via Wendy Gould