Back in March Mathew Knowles vowed to sue London tabloid The Sun after he gave them an interview about his messy break-up with Beyonce [click here if you missed that].
Mathew follows through with his threat...
According to E! News in his lawsuit Mathew Knowles claims The Sun interviewed him then "knowingly and maliciously misrepresented his relationship with his daughter, Beyonce and his granddaughter, Blue Ivy Carter."
Mathew is suing for defamation, breach of contract and unspecified damages.