Moore was the lead singer of the boyband in 1988 and hit the charts with 'Harder I Try' which got to number two.
He said he was never acknowledged for his talent while he was in Brother Beyond as he was labelled 'the good-looking one'.
After the group disbanded, Moore joined another band, Worlds Apart, who had some success in France.
After fame he became a manager, representing Lisa Scott Lee and Hayley Evetts.
He will be performing 'Seven Nation Army' by The White Stripes this coming weekend.
The Voice UK airs on Saturday (February 7) at 7.15pm on BBC One.
Watch the video for Brother Beyond's 'Harder I Try' below: