Chris Brown: I didn't leak those nude pics of (allegedly) Rihanna


, showed up on the Internet on Friday.


Chris Brown

says he didn't do it.

"This is both a false and defamatory statement," his rep says in a statement to "Chris has not released or ‘leaked’ any photos of Rihanna (or anyone else for that matter)."

Rihanna's record label, Island Def Jam Group, hasn't said whether the photos are of their singer, but it has reportedly fired off a cease-and-desist letter to web sites that published the photos.

After celebrity blogger

Perez Hilton

suggested that Brown "must be responsible" for leaking the pics, Brown's spokesperson issued the denial.

Brown, who dated Rihanna for a year, is charged with two felony counts in connection with an altercation between the two in February.

| Posted by Lisa Gutierrez, The Star