"You have to remember there was Jada Pinkett before there was Jada Pinkett Smith," she told 1xtra's A.Dot.
"Just being raised by a single mum who was a heroin addict should tell you everything," she explained.
She also chatted about her 20 year marriage to Will Smith - and how he reacts to her filming sex scenes.
"After 20 years, all of that is out the window," she joked