First, I'm not a lawyer, and you shouldn't take legal advice from some guy on the Internet.
Before you post it, especially if money is involved, contact a lawyer not people on the internet.
Depending on the country, there are 3 things you should consider.
1 - copyright; they should belong to you, unless there was a written contract before the shoot (again depends on the country). The band has nothing to say about copyright. They contributed to nothing in producing the photo.
2 - model release. This would be your big concern. The band should have been contacted prior to the concert, if you intend to make money or business related to money out of it. You have to ask for permission to use it.
Here in Canada, you can take a picture whenever you want (unless in some restricted place) but you cannot use it without the authorization of the subject for business purposes.
3 - finally, famous people have additional rights. You cannot take Lebron's photo eating humburger in your resto and say "even him eats my humberger". He has additional rights over you and me, the regular citizens. Not sure how famous your band is.
Either way, talking to the band is a good way, if you have the possibility. They can see your work as pub for them as well.
In general whenever money is involved, you should discuss with parties involved. There are some exceptions, like news and education, but I would still be more careful if they are famous.