Taylor Swift Performing with surprise guest, BOB during her Speak Now World Tour stop at Cowboys Stadium in Arlington, Texas on October 08, 2011. They performed BOB's hit song "Airplanes." According to Dallas Morning News, there was an audience of about 55451. Cowboys Stadium is known as the largest domed stadium in the world, as of today. Taylor was amazing!! It was the best concert I have ever been to and highly recommend y'all seeing her live. There's a reason she keeps winning those Entertainer of the year awards. =D