Sirius replied, "Actually, I do have a connexion to the Muggle world, but it’s tiny. Yule break of seventh year, Lily invited the Marauders to Christmas Eve dinner with her family. Lily’s sister Petunia was a right bint, by the way. Anyway, I watched a programme on the "telly,’ and listened to four lads from Liverpool sing. I don’t remember the group’s name now, and I’d never heard of them in 1977, but all four Evanses assured me the quartet was quite famous, worldwide, in the Muggle world. Petunia called me a "gormless idiot’ because I’d never heard of, erm—dammit, the group’s name sounds like an insect."