The 18-year-old will be fighting for a spot in the final on Saturday night against fellow Team Jessie singer Vince Kidd.
Just one of them will be able to make it the last live show, with the public votes alone deciding who goes through.
Becky, who was saved by coach Jessie last Sunday, revealed: “My parents are over the moon.
"We all said that we wanted to get this far so I am happy now with the fact that I’m in the semi-final. I’m proud of getting this far, whatever happens.”
The singer will be heading on tour with her fellow semi-finalists, and can't wait to perform at arenas like the O2.
Becky added: “I will be going on tour and finding out what touring is like with The Voice crew and will, hopefully, get a career for myself that way."
[cat]The Voice UK[/cat] airs on Saturday at 6:30PM on BBC One.