Writing a concert preview

I asked if the paper wanted me to review a show coming to town and they said no, but a preview would be great. Sooooo, anyone have tips?

It's a "mega show" with 2 big acts, 2 that are on the same level (up-and-coming types) and a 5th that is known, but not on par with the bigger names.

I've thought of a few angles:
- Talk to the top acts: Sharing the bill means less stage time, how to condense to give the fans what they want
- Boring version with preview of all 5 acts with quotes from as many as I can get over the next few weeks about how the tour has been and how they are looking forward to the show
- Find one little nugget from one of the top acts and expound on it for the whole story and just throw the rest of the bands in as a "oh, by the way..."
- Focus on the up-and-comers: Get their take on working with bigger names and trying to impress while on the road.

Thoughts?