Hall later recalled in vivid detail the challenges she faced during WWII while entertaining the troops across Europe and in the UK, some of whom were wounded: "Sometimes I had to sing without music, but it was a challenge, and so rewarding to get all the people to sing with me." At one London performance Hall gave at Lewisham Hippodrome theatre during the week of 20 August 1940, the Luftwaffe attacked overhead, dropping bombs and, "even though we could hear bombs exploding outside the theatre, we carried on ... I had sung 54 songs until the all-clear sounded at 3:45 a.m. in the morning! Hall's 54 encores are believed to be a world record for the amount of encores sung by one artist on stage. Hall also claimed to be one of the first entertainers to enter Germany before the war had officially ended. She travelled with the troops as they advanced towards Berlin, dismissing the dangers such bravery entailed.