Talk about a party. After the Warriors completed an improbable upset of the top-seeded Dallas Mavericks in the first round of the 2007 NBA Playoffs -- the first playoff series victory for the Warriors in 16 years -- naturally the team decided to loudly celebrate. Former Golden State forward Matt Barnes, who played on both the 2007 "We Believe" Warriors and on the team that defeated LeBron James and the Cavaliers in the 2017 NBA Finals, tells a pretty incredible story about the night his squad clinched the series at Oracle Arena.