Kesha's "Die Young," the number three song on Billboard's Hot 100 weekly singles chart, is drastically losing radio airplay in the wake of Friday's Sandy Hook Elementary School shooting in which a gunman killed 20 children and six adults.

The 25-year-old singer and rapper responded to the radio news in a tweet Tuesday night:

I'm so so so sorry for anyone who has been effected by this tragedy.and I understand why my song is now inappropriate. words cannot express. — ke$ha(@keshasuxx) December 19, 2012

Kesha's tweet has more than 3,000 retweets and nearly 1,500 favorites in three hours.

Months before Friday's shooting in Newtown, Conn., Kesha told radio and TV personality Carson Daly that the concept for the song "was to live each and every single day like it's your last and to always remain having a youthful spirit no matter how old I get."

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Take a listen to the song for yourself: