"All I know is that we did eight great songs so far, and I think we have incredible songs," the producer-songwriter tells PEOPLE.
"I remember when I met her first. I told my wife, 'This girl is gonna be the next Madonna.' That's what I felt," says RedOne, who released his new solo single "Don't You Need Somebody" last month. "And when we did 'Just Dance' and all the music we were doing, it was different; it was special. I wanted to break a new sound. I didn't want to follow every producer that was doing the same thing. And I did that sound, and it worked, and it changed music in the world: Dance music broke after that."
And though RedOne is excited with the eight new tracks they've cut so far, he's not sure if any will be used on the pop star's much-anticipated forthcoming LP.
"It's up to her: It's her album, it's her creative process, it's her world, and I'll be happy for her whatever way she takes it," the hit-maker says. "She's my sister. I want her to succeed, and I love her. She's just such an amazing artist."
As for what the songs they've recorded sound like? RedOne wouldn't get into specifics but says: "It's a mixture of classic music and futuristic, too – I didn't want to go too far from what she is. We kept it [similar to] what Gaga is, what she's done all these years. It's special."
"It's a mixture of classic music and futuristic, too – I didn't want to go too far from what she is. We kept it [similar to] what Gaga is, what she's done all these years. It's special."
We did 'Just Dance' and all the music we were doing, it was different; it was special. I wanted to break a new sound. I didn't want to follow every producer that was doing the same thing. And I did that sound, and it worked, and it changed music in the world: Dance music broke after that.