The Doubt star spoke with Cosmo about three of her personal superheroines -- Tina Turner, Beyonce, and groundbreaking '70s model Tracey Africa -- while also transforming into the three icons for some amazing pics.
"Her work ethic is like nobody else I’ve ever seen," Cox continued. "There were so many moments when I was shooting Rocky Horror and I’d be exhausted. My body would be hurting and I’d be like, 'Beyonce. Beyonce does this.' You have to just put in the work."
To honor Beyonce's flawlessness, Cox channeled her iconic "Single Ladies" look, showing off her fit figure in a black one-piece, and rocking a metal glove.
As for Tina Turner, it's the "Proud Mary" singer's voice and life story that really had an impact on Cox's outlook on the world.
"The pain, pleasure, and agony of all she's been through is in her voice," she explained. "Her story is the story of so many black women who’ve endured abuse and come out the other side in such a brilliant, beautiful way. "
Rocking Turner's iconic hairstyle and '80s look -- a denim jacket over a black leather dress-- Cox was a dead ringer for the eight-time GRAMMY winner.
Cox has been a longtime trans-rights activist and a groundbreaking member of the trans community, and it seems she's found a lot of inspiration in Tracey Africa.
"She was a black trans woman who modeled in the ’70s and had cosmetics deals and a hair contract with Clairol," Cox said. "It was a big deal."
"People think, 'Oh, this trans revolution is just starting,' but we’ve been around for a very long time," she continued. "It’s important to know that there's been a path blazed for me."
In the October issue, which is available on newsstands now, Cox also honored Janet Jackson, Josephine Baker, and Leontyne Price.
Last month, Cox spoke with ET at the Television Critics Association Summer Tour in LA where she dished on the "pressure" of taking on the iconic role of Dr. Frank-N-Furter in Fox's Rocky Horror Picture Show, calling it "the scariest thing I've ever done in my life." Check out the video below to hear more.