Glastonbury Festival campers are eagerly awaiting the opening of the live music stages today with Florence + the Machine set to headline in a last-minute schedule change.
Organisers have been carrying out final sound and lighting checks over the past 48 hours in preparation for the first band to take the stage.
As is tradition, the live music will be launched with a surprise act on the Other stage at 11am.
The Foo Fighters were the first choice to close the main stage tonight but pulled out last week after lead singer Dave Grohl broke his leg.
Instead, Florence + the Machine were promoted to the top spot, co-organiser Emily Eavis saying she deserved her moment in the spotlight.
Yesterday Jarvis Cocker, lead singer of Pulp, who in 1995 stepped in to replace the Stone Roses at short notice, reassured Florence Welch that it was normal to get "too caught up in yourself and lose sight of the bigger picture" when preparing for such an important performance but added that she would be "fantastic".
Other star acts set to perform today are Mark Ronson, The Proclaimers, Rudimental and Mary J Blige.
Meanwhile, organisers confirmed speculation that the Dalai Lama will make an appearance at Glastonbury Festival this weekend.
The exiled Tibetan spiritual leader will speak on Sunday where he will promote his message of "compassion, non-violence and the oneness of humanity", his representatives said.
Ms Eavis, daughter of founder Michael Eavis, said it was a "special moment" for the festival, which opened its gates to the 135,000 ticket-holders on Wednesday.
So far the festival has been bathed in glorious sunshine with temperatures of up to 22C (71.6F). But the first rain is set to arrive today, although the showers are expected to be light and brief.
Pollen levels are expected to be very high tomorrow and Sunday with asthma sufferers who are at an increased risk of an asthma attack, urged to take preventative medicines and carry their inhaler with them, Asthma UK said.
Every year more than 130 people are treated for respiratory issues at the festival, a spokeswoman said.
Police officers from Somerset and Avon Police have taken the opportunity to get in to the festival spirit donning angel wings and dressing up police horses in flower garlands, and at least two music fans used the fesitival site as the setting for romantic marriage proposals.
Singer-turned-activist Charlotte Church will welcome punk rock protesters Pussy Riot to Glastonbury tomorrow. Organisers announced that Church, who has been vocal in the anti-austerity movement since the Tory Government won last month's election, will introduce the Russian feminist group's appearance.
Pussy Riot have received worldwide attention for their protests against Russian president Vladimir Putin's regime, which has seen some members sent to jail. The festival guide lists their slot as "Pussy Riot in Conversation" at midday.