Democratic presidential nominee Kamala Harris appeared alongside superstar performer Beyoncé on Friday night to encourage voter turnout and reinforce the differences between the two parties on reproductive rights, with just days to go before voting ends. The rally at Shell Energy Stadium in Houston, Texas, followed months of speculation about whether Beyoncé would support Vice President Harris publicly ahead of the Nov. 5 presidential election. The two-hour event featured other celebrities, including Willie Nelson and Jessica Alba, as well as women detailing being denied medical care for pregn…