One of the best parts of How I Met Your Mother is when they mention a web site in the show, such as
“It was the best night ever dot com“, they’ve actually gone and got the site ItWasTheBestNightEver.com
And the site actually has some photos and a video of Marshall singing the song with Nuno Bettencourt.
It’s just one of those silly things that I enjoy when TV shows go the extra mile.
(Although, I thought the episode was a little slow otherwise)