It’s in the Steps reunion documentary. H himself said it was kept quiet from the band for years. Claire found out and she had to cover for them. Until the day came when she said she didn’t want to lie anymore and H I think I recall saying she blabbed to the others.Where was this mentioned? H sleeping with Tim Byrne wasn't a secret from what I heard. He then went on to work closely with Simon Cowell at Syco.