When Rihanna canceled a Trump charity gig in early 2011, she apparently failed to provide the upper-classman a doctor's note. Or if she did, Trump didn't believe it. The pop star supposedly backed out of a Trump event due to a lingering battle with bronchitis. Yet the next day Rihanna performed in Los Angeles at the NBA All-Star Game. Trump wasn't too hard on Rihanna, but he was quoted in the Palm Beach Post: "I thought [the cancellation] was insulting to everyone. But for Rihanna to go to the All-Star Game and perform after she told us she was sick, that is just a lack of respect."