"You're the Only World I Know" is a song written by Sonny James and Robert Tubert and performed by Sonny James.
In January 1965, "You're the Only World I Know was Sonny James' second No.
1 on the Billboard magazine Hot Country Singles chart (after "Young Love" in early 1957).
[1] The song had crossover popularity, reaching the Billboard Top 100 and Easy listening surveys.
"You're the Only World I Know" also kicked off James' amazing run of popularity, which continued to the mid-'70s.