National Unfriend Day Gets Underway

Not that Mark Zuckerberg likely lost much sleep over it but Wednesay marks the day that comedian Jimmy Kimmel wants you to "cut out some of the friend fat in your life." Meaning: Slash your list of Facebook friends in a big way.

The late night television host launched his call a couple of weeks ago during a monologue during a riff on the dilution of the term `friendship' in the age of social networking.

It was only chance but last week a former Facebook engineer who left to start his own company announced a service that's focused on sharing with just your closest friends - and, for now, just photos. Path, a free app for sharing photos, keeps your circle of friends limited to 50 people.

Path's creators were partly inspired by the research of anthropologist Robin Dunbar, who determined that 150 was the maximum number of people with whom someone can keep up a friendship. That message fell right in line with Kimmel's shtick.

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On his show Tuesday evening, Kimmel celebrated the arrival of National Unfriend Day with its very own anthem sung by country artists Brad Paisley and Darius Rucker.

To all the friends I've un'ed before
Who sent me quizzes about Jersey Shore
You made my life a hell
With your stupid LOL
To all the friends I've un'ed before

To all the guys from grammar school
Posting shirtless pictures by their pool
Your fat and sweaty back
Really makes me want to yak
To all the friends I've un'ed before

Our time on earth goes by so quickly
We have to make each moment great
So I cannot waste one more minute
Reading your dumb status update

Facebook had no immediate comment on how the festivities were being marked at company headquarters. Needless to say, Zuckerberg is not likely to be adding Kimmel to his friends list anytime soon.