Lady Gaga on Her 'AHS: Hotel' Character: "When She Walks Into a Room, It All Belongs to Her"

Gaga, Ryan Murphy and her glam squad break down The Countess' style on the FX thriller.

"We have quite a process to make the Countess come to life — we’ve done over 65 looks," says Lady Gaga’s makeup artist Sarah Tanno who works with the 30-year-old both on and off the red carpet. Also key to Gaga’s turn as a murderous fashionista is her wigmaker and hair stylist Frederic Aspiras, who’s featured in this behind-the-scenes clip.

According to the show’s costume designer Lou Eyrich, the collaboration with Gaga was rewarding but demanding, given the pressure that she felt to deliver a "volume of really great couture." Every element — head-to-toe — mattered to the high fashion-versed pop star.

"Lou and I spent a lot of time talking about how I feel about the character — like, why she wears her hair a certain way when she goes out hunting," says Gaga, who nabbed a Golden Globe for her role. "When [the Countess] walks into the room, it all belongs to her."

Adds co-creator and producer Ryan Murphy: "I think [Gaga] was drawn to being an actor because she was a little afraid of it — like, she wanted to conquer it — and yet she’s playing someone who has no fear."

Here, look back at every fearless fashion moment — platinum locks, bleached brows, cinched waistlines and fierce gloves — and find out why the Countess’ looks changed depending on her lover.