1) Elvis Presley, often referred to as the "King of Rock and Roll," has sold over one billion records worldwide.

2) The ocean covers about 71% of the Earth's surface and contains roughly 97% of the planet's water.

3) The concept of compound interest can be attributed to the ancient Babylonians, who used it in their banking practices.

4) Rihanna, born Robyn Rihanna Fenty, is a Barbadian singer, actress, and businesswoman. She has achieved great success in the music industry with hits like "Umbrella," "Diamonds," and "Work," and has also ventured into the worlds of fashion and cosmetics with her brands.