Ed Sheeran will serenade celebrity fan Maisie Williams during his Game Of Thrones cameo.

The singer will appear in a scene opposite Maisie's Arya Stark in the upcoming seventh season of the fantasy drama, and he reveals he'll perform a ditty for the young star.

"I just do a scene with Maisie," Sheeran tells The Hits Radio. "I don't really know what I'm allowed to say... I sing a song and then she goes, 'Oh, that's a nice song,' and I go, 'It's a new one', and then there's other lines."

The new season of Game of Thrones begins airing in July (17).