Late singer had been a favourite to headline Somerset festival for many years.
Concerts and sports events in the UK considered targets for terrorists and have been placed on high alert.
Festival fined £31,000 for killing fish - including protected species - following leak in 2014.
The message also calls for lone wolf attacks on US and Europe.
Euro 2016, Glastonbury and Wimbledon are touted as the targets for fake tickets this summer.
Plan your summer of live music with IBTimes UK's in-depth guide.
Corbyn invited to speak about his opposition to nuclear weapons at Somerset festival.
Labour leader was invited to the popular festival by activist and singer Billy Bragg.
Entertainment editor Toyin Owoseje rounds up the celebrity stories of the week.
Somerset festival, also headlined by Muse and Coldplay, taking place in June
Senior entertainment reporter Alicia Adejobi rounds up this week's music stories.
The singer made the announcement on the stage at London's 02 arena.
Performance will be fourth time Coldplay have headlined Glastonbury.
Band set to become festival's most 'headlined' act when they perform on the Sunday night slot
Reports claim organiser Michael Eavis has Coldplay headlining once again.
All 118,200 tickets costing £228 were snapped up within 30 minutes of going on sale at 9am today
Singer is expected to release a new album in November.
UK soul singer spoke to the IBTimes UK backstage at Wireless Festival 2015
It's time for new blood at the Cannes International Festival of Creativity and the ad industry.
Famed festival could be moved 140 miles if London wins a bid to become European Capital of Culture in 2023.
Tibetan spiritual leader describes violence of extremist group as 'unthinkable'.
Kanye West took to the Pyramid stage engulfed in light for a dramatic live set.