"One Thing at a Time" is a song co-written and recorded by American country music singer Morgan Wallen. Wallen wrote the song with Ashley Gorley, Ernest Keith Smith, and Ryan Vojtesak, and it was produced by Joey Moi. From Wikipedia
Wallen's 'One Thing at a Time' and 'Last Night' top album and song lists, while Swift sets record with five of the top 10 albums.
