It's that wonderful time of year: Time for the outdoor free concerts to be announced, and then for everyone to complain about the lineups of events they're not paying any money to see.

Last week, CMU's Activities Board quietly announced the headliners for the school's annual Carnival event. Fri., April 11, Icona Pop and local boy done good Mac Miller will headline the annual event, which is free and open to the public. (The only catch is, if it rains, it's moved indoors, and students are given preference for tickets in that case.)

Meanwhile, the Three Rivers Arts Festival has been announcing one act per hour today on WYEP; so far, here's what we know:

Fri., June 6: Jeff Tweedy
Sat., June 7: Bluegrass day, featuring Sam Bush
Sun., June 8: WYEP local-music show featuring Colonizing the Cosmos, Townsppl, Brooke Annibale
Sun., June 8: Trampled by Turtles
Tue., June 10: Kaiser Chiefs
Wed., June 11: Amos Lee
Thu., June 12: The Smithereens
Fri., June 13: Curtis Harding
Sat., June 14: Lucinda Williams
Sun., June 15: Jake Bugg

We'll update the schedule here as the day goes on; the quickest way to get the lowdown is to listen to WYEP at the bottom of each hour or follow WYEP on Twitter.

The Jazz Live International Festival, which takes place June 20-22 this year, will be announced in full next Wednesday, April 2.

The Allegheny County Parks series is still coming; those shows should be announced around May 1.