Sam's first-ever paid acting job out of drama school was a Barry Manilow jukebox musical called Can't Smile Without You. All of the cast were actor-musicians who played the score, and Sam still knows "a vast amount of Barry Manilow, which is actually amazing because he's incredible".
So Sam would love to see Barry in concert because he'd be able to sing along, since he was the understudy for three parts (bass, drummer, and lead guitar) and had to learn all the lines and the whole score.