Around 70,000 protesters took to the streets in Athens today, according to authorities, as two separate demonstrations were staged in the city while EU leaders discussed the plight of Greece in Brussels.
Four demonstrators and three policemen were injured in clashes, but none of the injuries are believed to be serious.
Police said seven people, out of more than 100 detained, had been arrested.
More top news
The Royals singer said her driver was "busting a nut" about having just had a star in his car, unaware of who was now on the back seat.
New Manchester City boss Pep Guardiola has already made a mark at the club by stopping overweight players train with the first-team.
The craze criticised as a celeb-backed publicity stunt has been hailed for funding landmark research in the study of motor neurone disease.