A choir member of North Yorkshire's Catterick Garrison Military Wags Choir will sing a solo vocal arrangement on the Queen's special jubilee song.
Rebecca Marshall is one of a number of singers from the group who will feature on Gary Barlow and Andrew Lloyd-Webber's creation.
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He has agreed a two-year contract at St. James' Park and becomes the tenth new face in the Magpies' first team squad this summer.
On the back of three consecutive Championship wins, the Magpies sit fourth, poised to move into the automatic promotion places.
Callum Young, who will now be 23, was last seen on August 27 last year at his home in Hylton Road.