"Nothing in This World" was released on August 28, 2006 and is the second official single taken from Paris Hilton's debut album Paris, and features vocals from then-unknown pop singer Kesha.
The song loosely concerns an unrequited love.
Billboard called it "another undeniably catchy, hook-happy mid-tempo jewel".
It was officially sent to Top 40/Mainstream radio in the United States on August 28, 2006.
In United Kingdom, the physical single was released on November 6, 2006, with the single being possible to download a week earlier.