Kim Kardashian's 17-year-old sister Kendall tweeted that she would be really upset if Rihanna didn't perform her song "Complicated" on her Diamonds World Tour. Kendall tweeted "If Rihanna doesn't perform Complicated tomorrow I'm gunna be very upset #FavSong." 

Instagram user @rihcovers captured the tweet on their page, and Rihanna commented saying "Well don't come."

A$AP Rocky, who's Rihanna's opening act on tour, retweeted the photo with a simple "LOL." 

Check out the photo in the above slide: 

Source: bossip.com