Friday night at Sugarland, come out and celebrate Britney Spears’ engagement at “Pop Presents: The Britney Spears Engagement Party” — in case you haven’t heard, the not-that-innocent princess of pop has gotten engaged to her ex-manager. We won’t hold it against you if you go a bit crazy on the dance floor while DJs Mikey Pop, Santiago Felipe and Emjay spin the pop hits that have shaped the world we live in. Also, be sure to catch drag queen Betty Betty Nice, who will be presenting a knockout Britney tribute performance.