Forbes has released their 'Most Powerful Musicians' list for 2013. Can you guess which artists top the list?

Lady Gaga and Beyonce sit at No.1 and No.2, respectively.

Despite Gaga being injured for the majority of the year which forced her to cancel her Born This Way Ball Tour, it still managed to rake in $168 million!

Beyonce just extended her Mrs. Carter Show world tour by 25 dates and grosses $2 million for every show. With this move she'll bring in an additional $50 million on top of what she has already pocketed on tour so far!

Michigan native Madonna rounds out the Top 3 on the list. She earned $125 million last year!

Taylor Swift, Katy Perry, J.Lo and Rihanna are some of the other notable ladies on the list. Justin Bieber and Coldplay help give the guys some recognition.

Are you surprised that the ladies top the list?