Forbes reports that Beyonce's net worth grew by $300 million this year to a hefty $800 million. It was only back in June that Bey landed at No. 48 on the magazine's annual ranking of the richest self-made women in America with an estimated worth of $540 million. A big part of this year's growth was the $100 million (post-tax) she earned from the Renaissance tour. Beyonce also celebrated the 10th anniversary of her self-titled album yesterday by releasing the song “Grown Woman” — a Timbaland-produced song from that era that has only been available in video form — on all the major streaming platforms.