Rihanna's hit single 'Umbrella' was written with Britney Spears in mind, but her label rejected it. This image appears in the gallery:50 Mind Blowing R&B Music Facts 5. Rihanna's hit single 'Umbrella' was written with Britney Spears in mind, but her label rejected it. 45 images See the full gallery: 50 Mind Blowing R&B Music Facts