Mesut Ozil and Alex Oxlade-Chamberlain treated popstar Justin Bieber to a private tour around Arsenal's training ground on Sunday evening.

The England flier and Gunners teammate Mesut Ozil gave Bieber a private tour of the London Colney facilities as the 22-year-old singer continued his UK tour.

Both Oxlade-Chamberlain and Ozil had been to see Bieber perform his 'Purpose' show on separate nights.

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The Ox posted a picture of himself and Bieber to his official Instagram page, captioning the snap: "Really enjoyed the show on Wednesday and great to take Justin around the training ground last night."

READ MORE: He's been 'All Around the World', now Bieber's living in Barnet.

Another picture of Ozil seemingly swapping shirts with Bieber has also emerged, apparently on the same evening.