Beyoncé, Kamala Harris Mason Poole/Parkwood Media/Getty Images ; Bill Pugliano/Getty Images With less than two weeks to go before Election Day, Beyoncé appeared in Houston on Friday, October 25, to endorse Kamala Harris, and was joined by her former Destiny’s Child bandmate Kelly Rowland. The “16 Carriages” singer, 43, was introduced by her mother, Tina…