He has written or co-written a number of well known songs, including "Believe" by Cher,[1] "Hero" and "Bailamos" by Enrique Iglesias and the five-times platinum U.S. single "Let It Go" by James Bay.
His songs have been recorded by many other artists including Lionel Richie, James Morrison, Celine Dion, Ricky Martin, Lemar, Craig David, Tina Turner, Britney Spears, Rod Stewart, Lara Fabian, Ronan Keating, Esmee Denters, JLS, Rebecca Ferguson, the Vamps, Nelly Furtado, Beverley Knight, Mica Paris, Andrew Roachford and Tom Walker, among others.
He co-wrote "The House That Jack Built" for Tracie Young which reached number 9 on the UK charts in 1983.
He has been a source of eight singles from four albums of Iglesias, including "Hero", "Bailamos" and "Be with You", the latter two songs reaching the number one spot on the Billboard Hot 100.
[citation needed] Barry co-wrote James Bay's single "Let It Go" and Nelly Furtado's song "Phoenix" (also co-written by Mark Taylor) for her sixth album The Ride.