Ke$ha -- I Was FORCED to Sing Controversial 'Die Young' Lyrics

Ke$ha has just -- shockingly -- come out and said she never wanted to sing the controversial lyrics in "Die Young" -- even though she's listed as one of the writers of the song.

TMZ broke the story ... Ke$ha's hit song has been yanked from a huge number of radio playlists since the Sandy Hook Elementary School massacre.

Ke$ha just tweeted, she understands why her song is now inappropriate, adding, "I had my very own issues with "die young" for this reason. I did NOT want to sing those lyrics and I was FORCED TO."

The lyrics include this: "Let's make the most of the night like we're gonna die young. We're gonna die young. We're gonna die young."

A bunch of people lashed out at Ke$ha on Twitter, slamming her for the song in the wake of the tragedy.