One thing you need to know about hot songs is that most hit songs from relatively unknown artists is usually bubbling for over a year. A song from an unknown has to make it’s rounds from the underground, college radio, and so on.
Don’t give up on a song that your camp feel is THE ONE. Promote the hell out of that song. Back the song with a lil bit of money. You don’t want to let that hit fall by the way side cuz it’s been a year and a half from when you recorded.
Something you must remember is that the song isn’t old to anybody that hasn’t heard it.