Kristen Wiig and Ellen really “Let It Go” for this performance!

Sometimes you just need to throw caution to the wind and sing at the top of your lungs to your favourite song. Of course, most of us wait until there's no one else around, but Kristen Wiig would rather do it on a world-famous TV show. Attagirl!

After admitting she didn't really know the song, Kristen agreed to do a duet of Let It Go with Ellen… on air. They mightn't be very talented… or know the words… but the entertainment factor is A1!

We're not sure who did a better job of mangling a well-loved song, Kristen, or this little girl… 

It's a tough one to call!