I don't know if it has been confirmed that it'll take place in Cabarete yet. Last week there was some talk that it was going to be moved to another beach.
They're called U2 Hollywood, and while I'm not usually a fan of "tribute bands" I have to say they put on a truly amazing show..you don't even have to close your eyes as they actually look and act like U2.
As for location, I'm sure if someone calls the Lifestyle Vacation Club office, they will confirm the location...
Please see the North Coast Concerts for information. This information has been obtained directly from Lifestyle Holidays Vacation Club. Hope this helps.