Beyoncé Knowles is making her way to London on November 2, but not before 100 of her British fans dress up in their best Sasha Fierce costume and pay homage to singer with their rendition of “Single Ladies.” After selling out her November 2nd show, Knowles will perform a free concert in London for 13,000 fans who win tickets by buying a pack of Trident gum and entering a ballot on the website.  Watch as these ladies put their best foot forward and boogie to the star’s hit single.–PS