Auntie, you're cool!

If it means being able to sing every Abba song from the film Mamma Mia over and over and over again, non stop, till my larynx is shredded and until life has ceased to have any meaning, while doing actions from the music videos (although the niece doesn't recognise ABBA in any form. To her, the film is the original and only true rendition of those songs).

Then yes, I am indeed cool. Ish.