At the Soccer America site there is an interview with Lamar Hunt about
the new Frisco Stadium at:
http://www.socceramerica.com/article.asp?Art_ID=562136155
AEG is mentioned in one answer as a concert partner...
"SA: Hunt Sports Group also paid for a concert stage to be built at one
end of the stadium. How much use will it have?
LH: We have built a permanent concert stage at one end of the stadium
and that will enable us to have, we estimate, between six and eight
concerts a year. We won't have to put a stage on the field. That was
quite a large investment to do that, about a couple of million dollars.
It gives us the flexibility to, as an example, play a soccer game there
Saturday night and have a concert Sunday night. So many times in the
big stadiums like Arrowhead or even Home Depot Center they've caused
some damage to their field by putting a stage on it. HSG made the
investment and they've given us management of the facility for three
20-year terms, 20-years plus two 20-year options, so I think it's going
to be something that may be done in other cities.
We've made a partnership arrangement with AEG.  They're going to be our
concert provider for six to eight events a year."