Question:  "On My Mind" is a song by English singer Ellie Goulding that many critics considered an answer to a song recorded by what English singer-songwriter for his second studio album?
Facts:
On My Mind is a song by English singer Ellie Goulding
Many critics considered  On My Mind to be answer song to "Don't"
Don't is a song recorded by Ed Sheeran
Answer: Ed Sheeran