Since the mid-1990s, the concert industry has had a persistent problem: Fewer and fewer new acts capable of drawing large crowds have emerged. Aside from the occasional Coldplay, almost no rock act that has broken out over the past decade can dependably fill arenas.

But it’s not like the nation’s concert stages have stood empty. Those older acts are still out there, singing songs you know by heart. This summer has already brought the likes of the Beach Boys, Kiss and Alice Cooper to the Triangle. And then there’s this week, which you could call “Revenge of the ’70s Rockers (Or, What Decade Is This, Anyway?).”

Consider these seven acts, who will all play the Triangle in the coming week – and all of whom had their commercial peaks back in the days of rotary phones and leaded gasoline. Peak year of popularity is, according to Billboard magazine, based on album-sales chart positions.

david.menconi@newsobserver.com or blogs.newsobserver.com/beat or 919-829-4759