The Royal Marines Corps of Drums have smashed the existing Guinness World Record for the longest group drum roll.
The record attempt began on Wednesday evening and finished today, 64 hours later.
The drummers more than doubled the previous record, which stood at 28 hours, 19 minutes and 3 seconds.
The new record was set by 40 Royal Marines at the Tower of London. Each drummer played for 15 minutes at a time during the record attempt, drumming for a minimum of 90 minutes each.
The event was all part of a year of celebrations for the Royal Marines who mark their 350th anniversary this year.
Zoe Cartell from Legoland Windsor says the tower took four days to build.