It's challenge time again!
This clip has been offered a few times by posters. Singing both Here Comes The Sun and Homeward Bound, here are Paul Simon and George Harrison:
Your challenge--if you choose to accept it--is to find two performers that you would like to see do covers of each other's signature songs. Or, alternatively, who would you like to see do a duet together, and what song would you like to see them do?