Cooper is one of the contestants aiming for fame on the new BBC One reality series, which launches this weekend.
© BBC / Wall To Wall
However, it won't be the first time that the singer has appeared on BBC One primetime on Saturday nights, as she guested with the Strictly band last year.
Her performance, which included her covering Jessie J's 'Mamma Knows Best' for Holly Valance and Artem Chigvintsev's foxtrot, won huge praise on the Digital Spy forums last year.
Listen to J Marie Cooper singing on Strictly Come Dancing below:
One reader on the forums wrote: "Her voice was amazing and 100% pitch perfect for a very difficult song."
Another added: "She's far more than any old belter, just listen to the vocal gymnastics."
The Voice UK launches on Saturday, March 24 at 7pm on BBC One.
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Watch Voice coach will.i.am discuss the series with Digital Spy below:
