Favorite Day of the Week

I suppose we can play a game. You need to answer truthfully, but at the same time include a reference to some entity in popular culture (title of a song, famous line in a movie / video game, witty permutation of something else famous, etc.). So, for example: My favorite day of the week is Friday.

I do this only to remove the temptation for others.

So, what if your favorite day of the week?

Saturday
Elton John - Saturday Night's Alright For Fighting (Yellow Brick Road 14 of 21) - YouTube (Elton John’s “Saturday Night’s Alright for Fighting”)