Sheeran, who has an association with football through sponsoring his boyhood club Ipswich Town, gave an indoor performance with players and staff sitting in front of him in the games area of the hotel.
Southgate has opened up the camp after matches so families can visit, although they have been several hours away from their four matches and next face the Swiss in Dusseldorf.
Having Sheeran at the training base was one of the touches Southgate and his team have introduced to make the tournament as enjoyable as possible during a month away where football has been the main focus.
The manager spoke about needing fun to refresh players, which is not “data” led but can have a big impact at a tournament. They have been together for more than a month since meeting up at Rockcliffe Park near Darlington.
At the last World Cup, Robbie Williams visited the squad for a singalong gig.