2013 promises to be a busy year in the classic rock world. Here is a list of what we know is scheduled to happen, and what might happen:

Tours - among the acts we know will definitely be on the road:

Bruce Springsteen

Fleetwood Mac

Rod Stewart with special guest Steve Winwood

Eric Clapton with special guest The Wallflowers

Steve Miller

CSN

Doobie Brothers

Styx with REO Speedwagon and Ted Nugent

The Who

Meat Loaf

KISS

Elton John

Black Sabbath

Bad Company with special guest Lynyrd Skynyrd

Moody Blues

Deep Purple

Aerosmith

Rush

Mickey Hart

Queen Extravaganza

Van Halen

Peter Frampton

Roger Waters

Jon Anderson-less version of Yes

And here's what we might see in 2013:

A Rolling Stones tour

40th anniversary activity from the Eagles

New albums by Paul McCartney, Bob Seger and U2