The 2012 BNP Paribas Open in Indian Wells, CA, brought out plenty of stars over the weekend. Gwen Stefani and her oldest son, Kingston, sat in the stands next to Roger Federer's wife, Mirka, on Friday, when Roger took on Juan Martin del Potro. Gavin Rossdale watched the same match from another section, as did Ben Stiller and Christine Taylor. Ben and Christine stuck around to see Rafael Nadal beat David Nalbandian in another game, while Will Ferrell and his wife Viveca Paulin checked out the matchup between Ana Ivanovic and Maria Sharapova.
On Saturday, Ben, Christine, Will, and Viveca were back in the audience to see John Isner take home the win against Novak Djokovic. Ben and Christine also checked out Roger and Rafael's tennis game, which ended with Roger in the lead. Ben tweeted, "Tough day for my favorite Rafael Nadal. Amazing to watch him and the great Federer." Anna Wintour also showed up at the tournament yesterday. The tennis continues today, with the final men's singles game between Roger Federer and John Isner taking place this afternoon.