Halsey is battling serious health issues and says she's lucky to be alive  

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Halsey released her new single yesterday.  It's called "The End", and it's about some serious medical issues she's been dealing with. It includes lyrics like, "Every couple of years now, a doctor says I'm sick / Pulls out a brand-new bag of tricks / And then they lay it on me / And at first, it was my brain, then a skeleton in pain / And I don't like to complain, but I'm saying sorry."

She also says, quote, "There's a poison in my brain and in my blood."

She's not saying what's wrong with her, but she's donating proceeds from the song to the Leukemia & Lymphoma Society as well as the Lupus Research Alliance. She also posted some videos of her treatment on Instagram, along with the caption, "Long story short, I'm Lucky to be alive.  Short story long, I wrote an album.  It begins with 'The End'.  Out now."

In one of the videos, Halsey says, quote, "I feel like an old lady.  I told myself I'm giving myself two more years to be sick.  

"By 30 I'm having a rebirth, and I'm not gonna be sick, and I'm gonna look super hot and have lots of energy and I'm just gonna re-do my 20s in my 30s.  Seriously." Halsey is 29 years old.