The Rapper: Nicki Minaj
When She Got Booed: At the "T in the Park" concert in Scotland in July 2012
Why It Happened: After showing up almost an hour late to her show, Ms. Minaj only performed for about 30 minutes before walking off stage. This upset a lot of fans in attendance who had expected a lot more for her, so they started booing her. Some other acts on the bill also complained about her on Twitter and reported that she was a diva backstage.