Who is more famous Britney or Miley?

Britney Spears is more famous by miles, she is the most successful female artist within the past decade and one of the most famous people in the world. To this day she has sold over 100 million records.

also britney is the biggest selling teen artist of all time, she's not a teen any more obviously. but wen he started she was. Miley has a lot of catching up to do.