Reign of love

[Chasingcars]

I think I already posted this but I'm desperate!
Does anyone know if the Coldplay song 'reign of love' is available as a track it its own right? I only have it as part of another track ''Lovers in Japan' on their Viva la Vida CD.
Reign of Love track is a few seconds after the Lovers in Japan track but is not listed as a numbered track on its own.
Ideally I need this track on its own and as an instrumental.
Had a look on Itunes but no joy...
Thanks in advance