Each week Mairead speaks to someone all about their obsession in life, and for the week that's in it, it was only right to chat to someone about the Eurovision!
Mick Lynch is probably an even bigger Eurovision fan than Mairead, he's even written a book about it called 'What's Another Year'.
Mick was lucky enough to go to the Eurovision in 2005 with Mairead, and he managed to get to the dress rehearsal in 1994 and see Charlie McGettigan and Paul Harrington, and Riverdance before anyone else.
Mick told Mairead what he thinks of the changes in the competition over the years, and he gave his prediction of who will take the top spot in Rotterdam this weekend.
You can hear the chat in full by pressing the play button on screen.