If you watch The Big Bang Theory, you're aware that the Barenaked Ladies theme song is pretty much the catchiest thing ever.  At the show's Comic-Con panel today, moderator Wil Wheaton brought the band out on stage and orchestrated a singalong with the crowd.  Warner Bros. has provided a clip which you can check out after the jump --- don't feel embarrassed if you start belt it yourself.

The Big Bang Theory airs Thursdays at 8/7c this fall; the third season hits Blu-ray™ and DVD on September 14th.

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