What: Scream Tour 2007
Where: Madison Square Garden, New York City
Complex says: In 2007, Scream Tour was headlined by Ciara and T.I., who mostly swapped stage time during their alternating sets. At the time, 50 Cent was rumored to be dating Ciara, so she pulled him out during her set. Not to be undone, T.I. pulled Jay-Z out during his set. But things got truly wild when Jay brought Kanye West out to perform "Can't Tell Me Nothing" during the height of