The pop-music version:

"Sunday Will Never Be the Same" by Spanky and Our Gang

"Monday Monday" by the Mamas and the Papas

"Tuesday Afternoon" by the Moody Blues (as MMario noted)

"Yell Help, Wednesday Night, Ugly (Medley)" by Elton John (on the album "Rock of the Westies")

"Jersey Thursday" by Donovan

"Friday On My Mind" by the Easybeats

"Saturday Night's Alright (For Fighting)" by Elton John<