Only One – Illenium Roblox Id 311616496 Vote Up +0 Vote Down -1You already voted! This is the music code for Only One by Illenium and the song id is as mentioned above. Please give it a thumbs up if it worked for you and a thumbs down if its not working so that we can see if they have taken it down due to copyright issues. Tags: Only One - Illenium Roblox Id