What Miley Cyrus Did: Put on a pretty outrageous show during the 2013 MTV Video Music Awards that included her twerking while dancing with Robin Thicke
When She Did It: August 2013
Why It Was So Controversial: Everything about Miley's performance at the VMAs was controversial. From the ridiculous outfit that she wore to the dance moves she pulled out for Robin Thicke, there's a reason people are still talking about what she did that night. Her performance will go down in VMA history.
Photo Credit: Idolator