Singer Chris Brown has revealed the single artwork for ‘They Don’t Know’, the second single off his forthcoming album ‘X’.

The song has been attracting a hefty amount of buzz since Brown announced that the track would feature previously unheard vocals from the late Aaliyah, who died in a plane crash in 2001.

"I just actually shot a video and the song is dedicated to all my fans. It’s called, “They Don’t Know” and the song features Aaliyah!," said Chris. "Never heard before vocals, all new stuff that has never been heard before, it’s something special for all my fans."

‘X’ is currently scheduled for release on July 16th and along with the Aaliyah track, will also feature guest spots from Nicki Minaj, Pharrell Williams and Timbaland – who was a producer on Aaliyah’s second album before her death. 

Check out Aaliyah’s video for ‘We Need A Resolution’ featuring Timbaland here: