13) Lady Gaga – Net Worth: $220 Million

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Since her rose to fame in 2008, this American pop star commercial success is getting bigger. Her album and single sold is over 27 million and 125 million. Her first three worldwide concert tours grossed more than $300 million in revenue. Her unique fashion style has also been part of her success; she is also a fashion designer and  partnered with Monster Cable Products to create fashion accessories.