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.