PJ Harvey won the prestigious Mercury Prize this week for her album 'Let England Shake.' But number 1 pop hitmaker Jessie J has confessed that she hasn't heard of the singer and her 20 year-long career in music, and is unsure what the Mercury Prize is.

"I didn’t see the ceremony, no, I was jet-lagged after a flight back from America so I had an early night. I live in a bubble. Could I be up for a Mercury next year? Possibly. I should probably find out what it is before then." the singer told NME Magazine.

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She admitted that she had never heard any of PJ Harvey's music, but was keen to explore her previous work.

Jessie J's album 'Who You Are' is one of this year's biggest selling albums in the Uk, selling over 600,000 copies. This week, retailer Amazon has seen a 1,190 per cent increase in sales of Harvey's award winning album 'Let England Shake'.