Two celebrities for the price of one as Chris Martin unexpectedly flew in on a private jet to go see Rammstein, leaving every bit as discretely on Sunday morning.

Accompanied by three friends, Martin apparently really wanted to see Rammstein and their Luxembourg date matched up the best with his rather busy calendar.

The organisers were very hush-hush about it all, and didn't let on beforehand that the Coldplay singer would turn up to watch the gig on Saturday.

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