The longest group drum roll is 64 hr 27 min 59 sec and was achieved by the Corps of Drums of Her Majesty's Royal Marines Band Service (UK) at the Tower of London, London, UK, on 3 May 2014. Forty members of the Corps of Drums of Her Majesty's Royal Marines Band Service took it in turns to drum on the same single snare drum. The record attempt was to celebrate the 350th anniversary of the Royal Marines founded in 1664. The actors Harrison Ford and Tom Hardy were present to launch the record attempt on 30 April 2014.Read more: Tom Hardy and Harrison Ford give their support as Royal Marines begin drum marathon attempt in London