Oprah Winfrey tops the Forbes list for the fifth time.
Lady Gaga earned $80 million over the last year.
Steven Spielberg had a very successful year thanks to his movie Lincoln .
Beyonce Knowles earned millions from her world tour.
Madonna is 2013's biggest earner with $125 million earned.
Taylor Swift's album Red sold 1.2 million in one week.
Bon Jovi's latest tour grossed $3 million per night.
Roger Federer is paid more than $40 million per year by his sponsors.
Justin Bieber is the biggest social-networking celebrity.
Ellen Degeneres' popular show won an emmy.