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Dave Grohl is giving "Gangnam Style" his official endorsement. 

But it appears the Foo Fighters' frontman was mostly using Psy's viral hit to make a point.  As the keynote speaker at the South by Southwest Festival on Thursday Grohl made the point that music lovers shouldn't depend on critics to tell them what's considered cool enough to listen to. 

But if Grohl really is a Psy fan, he can look forward to a new single from the rapper to drop on April 13th.  Earlier this month, Psy announced fans could tune into his YouTube channel that day to watch him debut the new song live from South Korea. 

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