Yes there is a most played artist across all formats combined and according to Mediabase.com “ Green Day is the Most Played Artist in all formats combined for 2005”.

I heard this on the radio, and I tried to log on to mediabase.com to reconfirm it but MediaBase needs some kind of password and stuff so I checked out Green Day’s website and yes there it was on their news page. I guess now that they are going on hiatus for 2006 after having an excellent year on tour with the album “American Idiot” lets look forward to their next smashing album.