Catherine – daughter to the Earl of Cardigan – says she hopes not to be judged on her posh background.
She says: “All my life I feel like people have come to conclusions about what I’m like just because I have a posh name or I went to a posh school.
“People think I was born with a silver spoon in my mouth but it hasn’t been like that and I’ve fought that for a while.”
Bo, who is estranged from her dad, has been gigging in bars for a living and in 2010 she made the final of the Orange Unsigned Act competition.
Will The Voice UK be her big break?
The blind auditions continue at 7PM on BBC One.