The Pope arrives in the UK
The Pope has celebrated an open-air Mass in Glasgow, attended by thousands of people.
Pope Benedict XVI, who is the leader of the Catholic Church, is in the UK as part of a four-day visit.
He landed in Edinburgh on Thursday morning and was greeted by the Queen, before touring the city in his Popemobile.
It's a big moment for the millions of Catholics in Britain as it's the first time a pope has visited since 1982.
The Pope said he wanted to "extend the hand of friendship" to the whole of the UK during his trip.
About 70,000 people cheered and waved flags as the Pope arrived to organ music and hymns at Bellahouston Park in Glasgow.
Britain's Got Talent star Susan Boyle entertained cheering crowds while they waited for the Pope to arrive.
The Pope waves to crowds in Edinburgh from his 'Popemobile'
The Pope has a lot of followers, but there are also lots of people who don't agree with what he stands for.
In recent years, it's become clear that some children in the care of Catholic priests have been mistreated.
The Pope did apologise earlier this year in a letter, but he's been accused of not doing enough to uncover exactly what went on.
During his trip he'll also visit London and Birmingham before flying home to Vatican City on Sunday.