Let's disscuss about songs that, literally, just don't want to ****in die.
Examples:
All I Want For Christimas Is You - Mariah Carey
With more than 14 million copies sold worldwide, Mariah Carey's christimas classic in almost every single year since it's release, it literally comes back to the charts by the simple fact that it's a christimas classic, in the United States made it first chart apparence in 2000 peaking at #83, then, in 2012 it reached at a new peak at #21, it also charted again in the Hot 100 at #26. It has charted mutiples times on the United Kingdom charts, the definition of an undead song.
Radioactive - Imagine Dragons
It currently holds the record for most weeks spent on the Billboard Hot 100 at 84 weeks, record that was hold by Jason Mraz with "I'm Yours", the song has been charting since the end of 2012 to date and has sold more than 6 million digital copies on the United States alone. It also is one of the best selling songs of the digital history.
"Royals". I love the song, but I was well over it by the time the Grammys rolled around which of course gave it a huge boost that extended it's radio play.