Tie Your Mother Down - Queen
Mother's Little Helper - Rolling Stones
Mothers of the Disappeared - U2
Mother and Child Reunion - Paul Simon
Your Mother Should Know - The Beatles
Plus, there's these songs singing about "dear ole' mom"...
Lynyrd Skynyrd - Simple Man - Mom's are always good for some advice...
Mama told me when I was young,
come sit beside me, my only son
And listen closely to what I say,
And if you do this, it'll help you some sunny day"
Queen - Bohemian Rhapsody - and, of course, there's this all-time classic...
Mama, just killed a man