Miranda Lambert gave a sneak peek of her new Broadway bar, Casa Rosa, with a soft opening that included surprise performances and an unforgettable karaoke session with her husband, Brendan McLoughlin. While the VIP party saw appearances from country music stars like Darius Rucker and Ashley McBride, it was Miranda and Brendan's duet of "Summer Nights" that stole the show. Let's watch the video to see the magic unfold...