Passage: "What a Difference You've Made in My Life" is an inspirational song written by Archie Jordan and first made famous by two artists during 1977: teenaged Christian music singer Amy Grant and country music singer Ronnie Milsap.

Question: Based on this passage, who sang what a difference you made in my life?
Steam of consciousness below:
To answer the above question, the relevant sentence is: "What a Difference You've Made in My Life" is an inspirational song written by Archie Jordan and first made famous by two artists during 1977: teenaged Christian music singer Amy Grant and country music singer Ronnie Milsap.
So, the answer is teenaged Christian music singer Amy Grant and country music singer Ronnie Milsap.