Creedence covering, "I Heard it Through the Grapevine"
The Animals covering Bob Dylan's cover of Dave Van Ronk's arrangement of "House of the Rising Sun"
Again for Jimi covering, "All Along the Watchtower"
Maybe CSNY covering Joni Mitchell's "Woodstock"
And - my personal favorite - Stones covering, "Love in Vain" (original by Robert Johnson)
But, I'm dating myself with these choices...