Back home again in Chicago. Air travel is wonderful for all the ground you can cover in a day but actually going through the process is a pain in the ass. Getting loaded into a pressurized steel tube and hurdling through the sky is not comfortable. I'm glad we're back and I'm glad we're done with the travel part.
I need to add a couple of honorable mentions to my O and P selections. As manogirl noted, Oasis is worth a shout. Roy Orbison is also an O that has a real place in Rock history. I loved his late work with the Traveling Wilburys. It's also impossible to ignore Tom Petty (another Wilbury). The list of great music created and performed by Tom is considerable.
Now for M. It's Sir Paul McCartney. I have been fortunate to see him in concert a bunch of times and at times it was magical. His body of solo work obviously stands on its own. Band on the Run is a classic album. McCartney, his first solo, is one of my favorites. Thank you Sir Paul for all the music.
Lots of possible M's out there so I will mention some of them. Van Morrison...just plain cool Melencamp...Indiana rocker...lots of good 3 chord specials Moody Blues...some great work in the late 60's early 70's...OK who did I forget?