Musical Allusions 6 by AlexanderD

Question 2

Think back to "Musical Allusions 4" for a moment, where there was a question about Reunion's "Life Is a Rock (But the Radio Rolled Me)". That song itself alluded to "Celebrate" from 1969 and "Baby I Need Your Loving" from 1964. Name EITHER act that performed those songs.

Three Dog Night, Four Tops