Lady Gaga made history at Chicago's Wrigley Field on Friday night when she performed her Joanne World Tour in front of a sold-out crowd at the Friendly Confines. Gaga became the first female artist to headline the ballpark, joining such acts as Sir Paul McCartney, Jimmy Buffett, Billy Joel, and Pearl Jam. "Somebody told me that I had the great honor of being the first woman ever to headline Wrigley Field," Gaga told the crowd. "I feel so proud to stand here with so much dignity, but I have