United Kingdom, Aug. 20 -- Dakota Johnson has been "weird friends" with Madonna for years.

The 35-year-old star - whose parents are actors Don Johnson and Melanie Griffith - has opened up on her bond with the Queen of Pop, who she first met after Madonna worked with Dakota's stepfather Antonio Banderas on Evita in 1996.

Dakota told E! News: "I really love her, we've been weird friends for a while. I met her when I was really young because she did a movie with my stepfather.

"Then I got to know her later because we kinda worked together on something, we've always kind of circled each other."

The Materialists actress described her friend as "an energy", while she still finds it surreal that they know each other.

She added: "She is an e...