UPDATE: Yesterday afternoon at the Queen Elizabeth Olympic Park in London, UK, children from 25 different primary schools took part in the world's Largest drumming lesson as part of their Bang the Drum project with Inspire-works facilitators. Official Guinness World Records adjudicator Pravin Patel announced that with an amazing 1,827 participants, the kids had smashed the previous record. The aim of the Bang the Drum 2016 event was to unite drummer of all ages and abilities across the globe to beat the drum for street children's rights.
This afternoon at the Copper Box Arena in London's Queen Elizabeth Park, around 1,700 school children aged from 7-11 are drumming up support for UK charity Street Child United and hoping to break the world record for the world's Largest drumming lesson in the process. 
The “Bang the Drum 2016” event will be led by members of Inspire-works, a British company that teaches African drumming and dance classes to people of all ages and abilities.
The piece of music the participants will be learning was composed by Inspire-works facilitators, local community drummers, as well as 35 former street children from nine different countries, at the 2016 Street Child Games that took place ahead of this year's Olympic Games in Rio. 
You can in the player below from 1pm.

The exciting event will also feature performances from Inspire-works musicians, students from Royal College of Music Percussion Department, the Young Drummer of the Year and beatboxers Tyte & Mr Phormula. 
The current record for the largest drumming lesson stands at 1,651 participants and was achieved by World Arts & Multi-Culture Inc at the first annual Taiwan Festival in Brisbane, Queensland Australia on 22 September, 2012.
Inspire-works achieved their first Guinness World Records title back in 2014, when they organised the Largest Samba band with 1,675 children in support of the launch of the second Street Child World Cup.
Largest samba band