Thanks to a post by HMXHenry - a developer for Harmonix - on the official Rock Band forums, it has been confirmed that the AC/DC expansion pack - coming out on November 2nd - will feature Trophies and Achievements for you to earn.

There will be unique Achievements and Trophies for the AC/DC Track Pack, as well as several that are song specific.

tyranitar24 via rockband.com »