How I Met Your Mother Cast Band Performing Theme Song

Watch the How I Met Your Mother Cast Perform the Opening Credits

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Updated 04/19/11 4:58 PM · Posted by · 1 comment

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This week's How I Met Your Mother had a special treat — the cast performing the opening credits! Barney gives each of his friends new identities in order to impress his father (John Lithgow), but he saves the most fun new feature for the group, collectively: they're a band! Watch everyone rock out to the series' usual theme song.

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