McFly performed a free concert to Christmas shoppers in Oxford Street today, which is closed to traffic for the day.
But they weren't the only celebrities wandering around.
TOWIE'S James 'Arg' Argent and Duncan Bannatyne from Dragon's Den are among the stars serving customers from behind the counter on behalf of the Make A Wish foundation charity.
More top news
Donald Trump is to visit the UK on July 13 and hold bilateral talks with Theresa May, Britain's ambassador to the US has said.
The Football Association has announced it has received an offer to buy Wembley Stadium.
The most hotly-tipped date is July 13, following the Nato summit which the president is due to attend in Brussels on the previous days.