Treemendous.

This is quite literally the most hair raising thing you'll see today.

Muireann is not a festive fan until well into December hits.

So, with the help of some TodayFM staff (Pamela Joyce your hair talents are limitless!), some ridiculous decorations, and an intoxicating amount of hairspray we set to turn the Grinch into the Christmas Star!

Here's how it happened:

Here's some more pic of Muireann O'Christmas: