Direct Response...when musicians answer each other in song

My friend and I have been playing a little game. We’ve been trying to come up with a list of songs that are direct responses to other famous songs. Here's what we've come up with so far:

1. Peter Schilling’s Major Tom to David Bowie’s Space Oddity
2. Joy Division’s Love Will Tear Us Apart to Captain and Tennille’s Love Will Keep Us Together
3. Roberta Flack’s Killing Me Softly to Don McLean’s American Pie
4. Liz Phair’s Exile in Guyville (whole album) to Rolling Stones’ Exile on Mainstreet
5. Lynard Skynard’s Sweet Home Alabama to Neil Young’s Southern Man
6. My friend added Eddie Money’s Take Me Home Tonight to the Ronettes’s Be My Little Baby, but that one bothers me for being too collaborative.
7. Woody Guthrie's "this land is your land" is an angry retort to Irving Berlin's "God Bless America"

Can you think of others? Please add.