Forbes has released its list of the Top 10 highest-earning women in the entertainment industry, with country superstar Taylor Swift caught in a four-way tie for fourth place, earning a cool $45 million between May 2010 and May 2011. Taylor has the distinction of being one of music's richest women, coming in second only to pop phenomenon Lady Gaga, who raked in a whopping $90 million during the same time period.

The 'Sparks Fly' singer's self-made millions were earned through her music endeavors, most notably her wildly successful Speak Now world tour and the 2010 multi-platinum album of the same name. Although the singer-songwriter co-penned many of her past hits with other Nashville tunesmiths, Taylor solely wrote every song that appears on the standard and deluxe versions of her latest album, 'Speak Now,' including the huge crossover hits 'Mean,' 'Back to December' and 'Mine.'

Once again, talk show pioneer Oprah Winfrey tops the list of leading ladies, earning $290 million. According to Forbes' estimation, the talk show host and OWN Network founder is worth $2.7 billion.

Top 10 Highest-Earning Women in Entertainment:

Oprah Winfrey -$290 million
Lady Gaga - $90 million
Bethenny Frankel - $55 million
Gisele Bundchen - $45 million
Ellen DeGeneres - $45 million
Judge Judy Sheindlin - $45 million
Taylor Swift - $45 million
Katy Perry - $44 million
Beyonce - $35 million
Danielle Steel - $35 million

The latest millionaire countdown comes on the heels of Forbes' list of highest-paid country singers, with Taylor placing second behind country heavyweight Toby Keith. Brad Paisley, Tim McGraw, Rascal Flatts, Kenny Chesney, George Strait, Alan Jackson, Carrie Underwood and Sugarland round out the list.

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to view dates and ticket availability for Taylor's Speak Now world tour. Fans unable to attend can bring the show to their living rooms with the live CD/DVD combo pack of the extravagant stage show, which goes on sale Nov. 21.


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