Hall & Oates - "Method of Modern Love" (chorus spells out part of the title)
Donna Summer - "Stamp Your Feet" ("stamp" spelled out)
Janet Jackson - "Miss You Much" (miss is spelled out)
Siedah Garret - "K.I.S.S.I.N.G." (I loved this song; should have been a pop hit, but stalled at #98 on the Hot 100 in 1988, I think)