To be completely honest, I felt like doing anything but watching the Grammy's this year until AC/DC was said to be kicking things off. They did, and it was definitely a treat to behold. See the video of it all here.

The legendary band whipped out the latest single and lead track of the band's most recent album, Rock or Bust as well as the old classic "Highway To Hell".

The best thing about a rock performance is watching the reactions of the stars who aren't necessarily into rock try to take in what's going on, and there are certainly some shots of that below.

Cheers to these dudes for doing what they do, even after all these years.

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