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Back when we broke the new tracklisting, I guessed that "Rockstar" may be a hidden track in the vein of "Sleep On It" from Danity Kane's album. That's exactly how it worked out. Donnie mentioned it earlier today and I have a copy in my hands now, so I can confirm that that is the case.

This explains the long track time of "Things I Would Do" listed on various sites. If you check out iTunes, you can buy "Rockstar" by itself, as well.