LAS VEGAS, NV – MAY 17: Singer Britney Spears arrives at the 2015 Billboard Music Awards at MGM Garden Arena on May 17, 2015 in Las Vegas, Nevada. (Photo by Axelle/Bauer-Griffin/FilmMagic)

Britney Spears has made quite a bit of money lately. Her bank account has had a boost thanks to her various projects over the past year. “She has earned $40 million this year,” a source close to the pop star says. Her bestselling memoir, “The Woman in Me,” her “Hold Me Closer” duet with Elton John, and her fragrances, plus royalties from her extensive music catalogue have all contributed to Britney’s wealth.