This one’s a strange one: Microsoft closed out its CES keynote on Monday with a Twitter choir, singing about the tweets that contained “Microsoft” and “CES” in them.

In what was quite possibly the weirdest way to perform a keyword search I’ve ever heard of, Microsoft CEO Steve Ballmer welcomed a lively choir of Twitter-lovers on stage near the end of his keynote.

He and fellow host Ryan Seacrest (whose presence on stage sparked a number of WTF reactions from observers) gave Microsoft’s last-ever CES keynote a good effort, but ended up producing something pretty flat… until the choir.

As TheNextWeb points out, this Twitter choir was perceived by many as being fluff to fill in the fact that Microsoft had little to announce at CES this year. Plus, it is kind of weird. You can watch the full three-and-a-half minute Twitter song about Microsoft products below:

This isn’t the first time Twitter has been put to song. Rappers Twista and Cam’ron created the social media “love song” called Follow You On Twitter, Josh Groban released an “album” of Kanye West’s tweets on Jimmy Kimmel Live, and Amanda Palmer sung an ode to Twitter during last year’s Shorty Awards.