Before tonight's episode (8.8: Mummy On The Orient Express) airs, the BBC have released a short, behind-the-scenes clip from Doctor Who Extra, featuring a glimpse at Foxes song which will feature in the episode.

The singer can be seen performing a jazz version of Queen's 'Don't Stop Me Now', before getting to explore the TARDIS set.

Check out the video in the player, below:

[youtube:9OC3c7I5BOM]

+  Mummy On The Orient Express airs Tonight at 8:35pm, on BBC One.

[Source: BBC]