Yes! Gaga at number two woth almost half the time compared to Rihanna.
You wish.
The opposite is true: Riri has been a musician for half the time Gaga has (while they both started recording songs in 2005, Gaga has in fact been a professional "musician" since 2000 according to her own claim (not sure what on earth she means by that but there you go)
Beyonce fans should stop. She was never that big in Germany. She never had the hype Britney had 1999/2000/2001 or Gaga had in 2009/2010. She never was as popular as P!nk, Rihanna or Shakira. Beyonce is just a one out of many singing girls.