"There were some checks, but there are so many people and it is so hot".
"I feel very humbled that people have joined together for something that represents everything that is good about Glastonbury, everything that is good about humanity", organizer S.J. Smallpage told the Bristol Post.
The five-day festival also hosts dance, theatre, circus, cabaret, comedy and, this year, a drive-in movie area showcasing films chosen by Johnny Depp.
The National, The XX, Katy Perry, Biffy Clyro, Craig David, Haim, Lorde, and Barry Gibb amongst others will make an appearance at the festival. Sheeran closes the festival on June 25, supported by Biffy Clyro, Chic and Barry Gibb.
Labour leader of the Opposition Jeremy Corbyn has been invited to attend the Armed Forces Day Parade in Burnham-on-Sea today (Saturday).
Status Quo, Goldfrapp, The Pretenders, The Jacksons, Dizzee Rascal, Alison Moyet and Kiefer Sutherland are also on the bill.
All the action kicks off from 10.45am today when Hacienda Classical take to the Pyramid Stage.
Glastonbury Festival fell silent for a minute on Friday in memory of recent terror attacks in the United Kingdom and the devastating Grenfell Tower fire in London, before Hacienda Classical eased revellers into the first day of music at the world's biggest greenfield festival.
Glastonbury Festival founder Michael Eavis has become the first person to visit the event's most luxurious toilet - featuring a throne, disco balls and its own soundtrack.
There will be no festival next year, with the dairy farm needing a fallow year every five years to recover.