This app will stop working on 3rd April 2017. But you can still listen to BBC iPlayer Radio via your browser by visiting bbc.co.uk/radio
Nashville based singer-songwriter Stephen Simmons joins Bob and plays songs from his new album The Big Show, inspired by life on the road.
See all episodes from Bob Harris Country
See all clips from Stephen Simmons in session
See all from Stephen Simmons in session
See all broadcasts of Stephen Simmons in session (1)
Find out more about our upcoming digital radio service dedicated to country music.
Find out how we celebrated 'Whispering Bob's' 70th birthday.
Sign in to the BBC, or Register