If Phish Never Did This Cover, They Should During Their Final Show (via former Phish chronicler via current Lindsay Lohan's funbags chronicler)

Song: I've Seen All Good People
Original Artist: Yes
Cover Artist: Phish
Imagine Trey Anastasio singing to grateful fans as they dance for the last time: I've seen all good people turn their heads each day so satisfied I'm on my way.