Justin Timberlake is set to include some older and newer tracks on his next album.

The US singer only just released comeback record 'The 20/20 Experience' earlier this year, but word has come out that he will unleash a second volume of the album near the end of 2013.

Speaking to Billboard, producer Jerome Harmon said that the record will include cuts that didn't make it onto the first volume, as well as some new tracks. He said:

"Before we came to the 10 [tracks on volume one] that he wanted and the two bonus tracks, we had over 30, 40 tracks."

He continued: "So I think he's going to go in, and we're going to take some of the stuff that we've already done, and of course create more music at the same time."

Harmon also revealed that recent single 'Mirrors' was actually written in 2009.