By Andrew Holleran Indianapolis Colts owner Jim Irsay added a special guitar to his collection this week. The prominent NFL owner announced on Twitter that he had the winning bid on a guitar that belonged to Kurt Cobain. The winning bid: $4.5 million. “It’s OFFICIAL: The Kurt Cobain “Smells Like Teen Spirit” Fender Mustang guitar is now part of “The Collection” @IrsayCollection I am proud to be the steward,” he announced. That’s a lot of money, but hey, he’s an NFL owner. Fans are excited. “Congrats @JimIrsay ! I can’t think of a better person to take care of these items and preserve for futur…