Today marks the first day of the NBA Playoffs, which means that in addition to watching the teams battle it out on the court, we'll get to see some of our favorite celebs at the games. If there's one thing stars love, it's sitting courtside at basketball games and cheering on their favorite teams. Hey, who can blame them? To celebrate the start of Playoffs, we're taking a look back at celebrities rooting for their teams at basketball games. Click through our gallery to see everyone from Beyoncé and Jay Z to Taylor Swift and Karlie Kloss courtside.