Watch: Pentatonix Sings the ET Theme Song!

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Photo: ETONLINE
Not to toot our own horn, but the ET theme song is one of the most iconic theme songs in television history – we dare you to find someone who can't hum it! And now a capella group Pentatonix, the 2011 winners of NBC's The Sing-Off, are performing their own unique take on it!
Watch the video to hear their peppy version, and for details on their appearance in Pitch Perfect 2, and their two new albums, one of which is holiday-themed.