Taylor Swift and Selena Gomez: The Madison Square Garden Duet!
No offense, Johnny Rzeznik. But we've forgotten about you already.
On Monday evening, Taylor Swift invited the Goo Goo Dolls frontman to join her on stage at Madison Square Garden for a version of "Iris." It was perfectly decent. But it can't compare to the fun duet Swift put on last night, also in New York City, with another special guest: