New iTunes Integration with Facebook?

I was trying to buy a couple of songs from the new David Guetta album on iTunes tonight, but the page kept bugging out. I then noticed the new buttons on the side of the page that say "Like" and "Post". Are these hinting at upcoming integration of iTunes and Facebook or have these buttons been here forever?

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via i.imgur.com

Edit: The plot thickens. The iTunes store now works correctly, but those buttons have been removed.

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via i.imgur.com