I feel the contestants may not have such an easy time picking the proper song to sing.

I can't see anybody picking a Beatles song from their early collection. Can't see anyone singing, "Love Me Do". I wonder if the contestants can sing a song that the Beatles covered? Someone mentioned "Twist and Shout" which I believe the Isley Brothers sang. "Roll Over Beethoven", "Act Naturally" and "Please Mister Postman" are others that come to mind.

Many of their songs feature guitar hooks such as "Daytripper" but the song would sound silly without the hook. Others feature the fantastic harmonies of John, Paul and George such as "If I Fell" but would be lacking sung as a solo. And some of the songs if not most do not have a wide vocal range to work with.

I guess the safe route would be to pick an uptempo song such as "Got to Get You Into My Life" even though the horns play a major part in making the production sound great.