Los Angeles - Kevin Federline has accused Beyoncé of having Botox surgery.
The 37-year-old DJ - who is best known for his three-year marriage to pop star Britney Spears - has taken to social media to accuse the Drunk in Love hitmaker of having Botox surgery after she was seen on TV alongside her husband Jay Z at a boxing fight in Las Vegas on Saturday night.
Kevin tweeted: "She looked botoxed. (sic)"
Later, he added: "So sad when a beautiful woman chops and screws her face up with Botox and surgery."
Botox?! More like flawless, Kevin Federline!
Meanwhile, Kevin recently admitted his high-profile relationship with Britney was "chaos", adding that the attention they received was difficult to manage.
Kevin - who married Britney in 2004 and shares sons Sean Preston, 10, and Jayden, nine, with the pop icon - said: "It was fun, it was crazy, it was chaos...The limelight, the entertainment business, the lifestyle - period. When you're 25-years-old, how do you handle that? Nobody can prepare you."
Kevin is now married to former volleyball player Victoria Prince, with whom he has two daughters - Jordan, four, and 19-month-old Peyton.
(Photo: Getty Images)