Rose Byrne Explains Why 'X-Men: Apocalypse' Will Have Some 'Pretty Major' '80s Costumes

It's all about James McAvoy's denim suits.

The new "X-Men" franchise started off with a bang in 2011's "X-Men: First Class." Not only did they have an amazing cast with the likes of Jennifer Lawrence, James McAvoy, Michael Fassbender and Rose Byrne, but they also had really amazing 1960s costumes. Then the '70s came a'knockin in last summer's "Days of Future Past" and well... let's just say some people (Fassbender) were not a huge fan of full-bodied suit pants and psychedelic prints.

Now, the gang is heading to the 1980s for next summer's "X-Men: Apocalypse" -- but will the mutants be able to handle the shoulder pads and leg warmers?

"I like the '80s!" Byrne told MTV News during a press day for her new movie "Spy." "There's a high pant -- I've got a great high pant thing happening, [and] I like a strong shoulder. I'm not a fan of the weird négligée under the blouse look -- that very '80s look."

But what of her costars? Will they embrace the '80 style, or will Fassbender have to suffer through more awkward Magneto fashion choices? No word yet on Fassy or his latest looks, but Byrne assured us that McAvoy, who plays Professor Charles Xavier in the films, will be looking fresh and fly.

"James McAvoy's got an incredible suit -- looks like he's in Spandau Ballet," she said with a laugh. "He's like, 'that's pretty major.'"

Pretty major indeed -- check out Spandau Ballet below for proof. And in case you were nervous about seeing JLaw in a side pony and neon bracelets in "Apocalypse," know that Byrne thinks a lot of the fashion is not much different from what you see on city streets today.

"Fashion now -- '80s is still in. You see some of the things people are wearing in the '80s and I'm like, 'you could buy that in Marc Jacobs.' It's very interchangeable, now.'"

"Spy" hits theaters on June 5.