The thing about Rainbow is, even she takes it with a grain of salt. I don't think she uses it at all.
She made it because she had 1 more album under her contract with Sony, and she was so at it with Tommy she didn't wanna release Glitter under them since it was suppose to be big.
So she went into the studio and made "Rainbow" in literally 3 months to leave Sony. Yet it still had the classic, 2 #1's, and went 3x Platinum.
Rainbow is so cute though . The cover is iconic . You can tell there wasn't much effort as her previous work but it still slays .. Heartbreaker really saves it