They enjoyed a string of hits in the 1980s, starting with their 1986 number one West End Girls, and including their other chart-topping singles It's A Sin, Heart and Always OnMyMind.
"To step into something that was already a well-oiled machine, which is effectively the Broadway cast, it was very much onmymind to not be the weakest link, but once I got comfortable with everything, it was such a fun character and so over the top, " Ferrell says.