Barlow, John duet's 'Face to Face' to be released as single
The 42-year-old star has not divulged much details about the duet, reported Daily mirror.
"Usually I would send the guys something to listen to but I haven't on this occasion," Barlow said.
"I haven't really let anyone hear it. I know they've heard the first single but they haven't heard the album. They all love the single, and they really like the change in direction," he added.