Joaquin Phoenix’s rep is denying reports that his rap career is a hoax.

“The transition from one career to another is never seamless. It should come as no surprise to anyone that Joaquin came from a musical family, in addition to winning a Golden Globe for his portrayal of Johnny Cash,” his rep tells MTV News. “He intends on exploring his musical interests despite speculative, negative or positive reactions.”

Entertainment Weekly had previously reported that Phoenix — along with brother-in-law Casey Affleck — was playing an elaborate, Andy Kaufman-esque prank on the media (and that his publicists were a part of it).

Phoenix — who’s been sporting a heavy beard lately and announced he was retiring from acting three months ago — shocked fans when he hopped on stage Jan. 16 at Las Vegas club LAVO and rapped.

The act was filmed by Affleck for a documentary about Phoenix’s transition to music.

“It seemed like the rapping was part of playing to the camera,” a witness told Us of Phoenix’s performance.