A hip-hop superstar beef was cranked up another notch Wednesday when Drake sued Universal Music Group for defamation over ...

Drake is slamming his own music distributor ... including incidents naming his 7-year-old son Adonis which involved violence, threats and financial damage, though he claims the music label ...

And, the suit claims, the music company has made large investments ... The feud between Drake, a 38-year-old Canadian rapper and singer and five-time Grammy winner whose full name is Aubrey ...

He'd also pulled his son, 7-year-old Adonis, out of his Toronto elementary ... would be costly," the filing said. "By devaluing Drake's music and brand, UMG would gain leverage to force Drake ...

"And, the suit claims, the music company has made large investments ... "The feud between Drake, a 38-year-old Canadian rapper and singer and five-time Grammy winner, and Lamar, a 37-year-old ...