Give some stream of consciousness and then the answer. "Welcome to My World" is a popular music standard written by Ray Winkler and John Hathcock (1919-2000) and recorded by many artists, most notably Jim Reeves. Though the song is credited to Winkler and Hathcock, the melody was likely written by Eddie McDuff rather than Winkler. A traditional love song, the bridge includes lyrics taken from Matthew 7: 7 -- 8 ("Knock and the door will open; seek and you will find; ask and you'll be given ...," from the Sermon on the Mount).

Answer this question: who sings the song welcome to my world?
The important part for answering this question is: "Welcome to My World" is a popular music standard written by Ray Winkler and John Hathcock (1919-2000) and recorded by many artists, most notably Jim Reeves.
Therefore, the answer is many artists , most notably Jim Reeves.