Gary Barlow has revealed that his journey around the globe to recruit musicians for a special track to celebrate the Queen's 60th year on the throne was "a bit sh*t".

The Take That star travelled to Australia, Kenya, Jamaica and the Solomon Islands in order to discover singers and musicians that could work on the cut entitled 'Sing', which was a collaboration with Lord Andrew Lloyd Webber, but explained that he "wouldn't do it again":

"It wasn't always nice. It was lots of times s**t, it was a bit s**t. Sometimes we didn't know what we were going to get when we landed in places and [often] discovered better stuff than we researched. I've made hundreds or records. I've never done anything like this before... I found it really motivating, incredibly different. It sort of brings out a new side of you."

Speaking at a screening of accompanying documentary 'Gary Barlow: On Her Majesty's Service', he added:

"It wasn't even a musical achievement for me at the end of the film. I just loved meeting the people. There are few times I'm able to go, whether it's abroad or in this country, and actually enjoy meeting people. I often spend most of my time avoiding people if I'm honest."

"The fact that I could go up and shake people's hand and meet them and discover about their lives, I really enjoyed it - I wouldn't do it again, but I really enjoyed it."

Watch the music video for 'Sing' below: