Chris Brown's new album title is a result of him being "numerical".

The R&B singer's sixth studio album is called 'X' and the 23-year-old international star has revealed the reasoning behind the name.

Speaking to MTV News, Brown said: "I made it kinda numerical. X is a Roman numeral for 10; this also symbolises 10 years of me being an artist. I started when I was 14.

Brown added: "X also means my birthday, 5/5/89. Five and five is 10; eight, nine, 10, so X," he said. "And then another quick one is 24. It's the 24th letter in the alphabet, and I'll be 24 when X comes out. That's kind of it in a nutshell."

Brown debuted 'Fine China' earlier this week - the first single from the album. The star collaborated with Kendrick Lamar and Rihanna on the album for tracks 'Autumn Leaves' and 'Put It Up' respectively.

He has previously discussed the inspiration behind the Rihanna song.

"So we did 'Nobody's Business' for her album, and then I wrote a song, it's called 'Put It Up.' It's more of an R&B record. I wanted to do an R&B record with Rihanna because I didn't want it to be the same four-on-the-floor pop."