Q: Context: "What Part of No" is a song written by Wayne Perry and Gerald Smith, and recorded by American country music artist Lorrie Morgan. It was released in December 1992 as the second single from her album Watch Me. The song reached Number One on the U.S. Billboard Hot Country Singles & Tracks charts dated for the week of February 27, 1993, holding the Number One position for three weeks. To date, it is Morgan's biggest hit.

Question: who sang what part of no don't you understand?
Let's give stream of consciousness below
The relevant information to answer the above question is: "What Part of No" is a song written by Wayne Perry and Gerald Smith, and recorded by American country music artist Lorrie Morgan. So the answer is Lorrie Morgan.