Lady Gaga is expected to bring in $100 million (£63 million) in 2011, according to Forbes magazine.
The Poker Face singer is predicted to make the money through tour tickets, album sales and merchandise.
The eccentric singer, whose real name is Stefani Joanne Angelina Germanotta, was the seventh highest-paid musician in the magazine's 2010 Rich List, earning £40 million.
Lady Gaga is performing 41 concerts over the next six months as well as releasing her new album, Born This Way.
Next month the 24-year-old singer, who recently wore a meat dress to an awards show, will perform at the Grammys, where she is nominated for four awards.