CNN  —  Beyoncé will appear alongside Vice President Kamala Harris at a rally Friday in Houston, a person familiar with the planning tells CNN, the first joint appearance with the music icon whose anthem has been the soundtrack of the Harris campaign. The appearance, in which Beyoncé will appear with Willie Nelson, is designed to be one of the biggest closing acts of the campaign. Since the moment Harris ascended to the top of the Democratic ticket, the vice president’s team has been working