Solange Knowles didn't have a very pleasant experience when she attended a Kraftwerk concert on Friday night.
Knowles went to the concert in New Orleans, Louisiana with her husband, 11-year-old son and a friend of his.
After standing up to dance to Kraftwerk's hit Machine, Knowles claims a group of white women told her to sit down. When she didn't, they threw a lime wedge at her back.
The 30-year-old singer took to Twitter to express her rage about the whole experience, starting her series of tweets with "Let me tell you about why black girls/women are so angry".
She had been enjoying a chance to "dance and enjoy a band I love."