Depends on the age group of the population you are polling.
The older generations will say John Wayne.
The younger generations will say Adele.
Statistically:
John Wayne is valued at $15million USD.
Adele is valued at $45million USD (because she is a lot more recent than John).
This would be Adele as she as won more Grammies (7)
Adele is more famous
Adele
E.t
Shakira has been around for over 20 years. She is known in every corner of the earth, she sells out arena's. Adele does not tour worldwide at all, because she isn't famous enough. It's safe to say that Shakira is more famous around the world.
This would be Adele as she as won more Grammies (7)
John Lennon's little wang is more famous than Little Wayne.
Wayne.
This depends only on your preferences !
Adele is more famous
John Lennon
adele is more famous and has won more awards
As of December 2012, Adele gets 440 million google hits, Lennon only 165 million. Although google is an imperfect measure of fame, this would suggest that Adele is more famous at the moment.
Adele
Adele.
they are both the same amount famous!
adele is more famous than neil diamond