why do you feel like you are growing out of Jay-Z, I am 49 and I am really enjoying his stuff...for me music is ageless...i saw him this summer and sure i felt out of place, but i didn't care, i was there for the music...and i wasn't disappointed....
g-love is awesome! check out the list i gave above...a lot of great new bands...pretty simple rock music, some 'americana' style with some bluegrass influence...like everyone says, check out the black keys...great blues based rock...