Most famous Female artists according to Google Trends
1. Britney Spears %100
2. Rihanna %94.1
3. Beyonce %76.4
4-5. Lady Gaga/Miley Cyrus %70.5
6. Shakira %58.8
7. Madonna %52.9
8. Selena Gomez %47
9-10. Katy Perry/Taylor Swift %41.1
Google Trends: Measuring search interest in topics is a beta feature which quickly provides accurate measurements of overall search interest. 2004 to present, benchmarked to Britney Spears = 100.
Highest peaks:
1. Britney Spears: December 2006
2. Miley Cyrus: August 2013
3. Britney Spears: February 2007
4. Rihanna: February 2009
5. Britney Spears: September 2007
6. Britney Spears: January 2004
Note: Janet Jackson holds the highest peak in Google Trends but she did not make it to the list.