Former peermusic signing Mac boasts a career total of 58 Number One singles and albums and sales of over 140m records.
His debut as a writer was on his second ever production, Gonna Give You Devotion, which reached number two in the UK charts in 1991. Since then among the artists he has worked with are The Wanted, One Direction, Susan Boyle, Westlife, Boyzone, Kelly Clarkson, Il Divo, Leona Lewis and JLS.
Mac has writing credits on 10 UK Top ...
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