Jessie J duetted with a seven-year-old girl at the U.K.'s Glastonbury festival on Saturday (25Jun11) after inviting the youngster to join her onstage for a rendition of her hit song Price Tag.
The British singer performed her entire set perched on a red and gold throne after breaking her foot in an onstage accident earlier this month (Jun11).
Sporting an orthopaedic boot on her left leg, the star played several of her hits before calling a young girl, identified only as Shay, from the audience to join her for a duet.
The girl sat next to the Do It Like A Dude hitmaker on the chair and was instructed to join in the chorus of the song, but Jessie J looked shocked when Shay delivered a note-perfect rendition of the entire track.
The singer told festival-goers, "It's Jessie J featuring Shay! This wasn't even planned... Give it up for Shay!"
She also joined in the spirit of the outdoor event by smearing mud on her face during her performance.