Blondie was one of the first ‘white gals’ singing rap.
This was heard on her hit ‘Rapture’, back in 1981.
Done her way, Rap was fun, melodious and satisfying as a piece of performance art, the way jazz singers used Scat. I always liked hearing the Warning Bells in the intro.
Madonna had much bigger money behind her from the very beginning, better sound production and songwriting, better choreographed dancers, back up singers, far better promotion. So it was Madonna who became Rock Royalty at that time. As Tina Turner might have said ‘What’s talent, got to do, got to do with it?”
Madonna's first album in 83' titled "Madonna" was quite innovative, some of the earliest American tech pop to actually chart. At the time, tech pop was mostly European and Brit.
First album had 'Holiday', 'Lucky Star', and 'Borderline' with very catchy rifs. They almost named the first album 'Lucky Star', but they thought Madonna could be a star.
Problem was it got out of hand in the mid eighties and Madge has been nightmare fuel for 30 years now.