For artists, touring can be demanding. Sometimes concerts have to be rescheduled due to prior commitments, diva attitudes, illness or because tour mates just can't get along. Here are 9 artists that were booted from or had to cancel a concert.
Chris Brown Chris Breezy cancelled a series of Canadian concerts citing his recent seizure as the reason.
Britney Spears Britney cancelled her Onyx Hotel tour after suffering a bad knee injury while filming a music video.
Iggy Azaela Iggy had to pull out of three Australian concerts on Beyonce's Mrs. Carter World Tour over prior commitments to music company Vevo.
Future Drake fired Future from "Would You Like A Tour" after he dissed his album "Nothing Was The Same." The two have since reunited--after Future threatened to sue.
50 Cent 50 was dropped from the MLB All-Star Bash after allegedly assaulting his secret baby mama Daphne Joy's. He has since plead out the case.
Lupe Fiasco Lupe was thrown off stage during an Obama inaugural concert for performing an anti-war song criticizing The president.
K Michelle She was supposed to perform with Lyfe Jennings in Tampa, but quit the concert because she did not like performing before Lyfe. Diva attitude?