Her continuing popularity was ensured by the success of her radio programme "Sincerely Yours", which began airing in 1941, with messages to British troops serving abroad. However, in the aftermath of the fall of Singapore in February 1942 the programme was taken off air for 18 months out of fear that the sentimental nature of her songs would undermine the "virile" nature of British soldiers. Instead, "more traditionally martial classical music" was promoted.