While performing at the iHeartRadio festival in Las Vegas this weekend, Justin Timberlake changed the lyrics in "Cry Me A River" to diss his ex-girlfriend Britney Spears, who was a presenter at the same concert!
In a part the song where he usually says, "Don't it make you sad about it?" JT instead substituted: "B*tch, why don't you cry about it?"
In a 2011 interview with E!, his producer Timbaland confirmed the song was written about his breakup with Britney, so clearly Justin was dissing his ex, who was in attendance to introduce Miley Cyrus.
Why do you think Justin, who's married to Jessica Biel, changed the words to the song during this performance?
In other JT news, he's streaming the entire second half of his album, The 20/20 Experience, this week for free on iTunes before it officially drops on Sept. 30.