We all know the big names in sport and entertainment, but when you look to the sidelines, what's it like to be the sibling to a star? Susan Bradley, nee O'Driscoll, has started a podcast on just that.

Susan's little brother is Brian O'Driscoll, and in her new GoLoud podcast 'It's All Relative' she speaks to other siblings of people from various walks of life.

You can hear the chat in full by pressing the play button on screen.