Chris Brown to sue rapper Raz B?

London: Singer Chris Brown is planning to sue R&B singer Raz B for suggesting he is gay.

The former B2K member has written about Brown`s sexual orientation in his memoir titled "The Boy`s Life". Brown took to Twitter to express anger, reports

"Lying about somebody in a book is called defamation of character. Keep feeding people bulls**t and ima end up owning you and that book! RAZ B! God bless... My lawyers are handling it! Lol ima chill," tweeted Brown, who was earlier in a relationship with singer Rihanna.