This song is stuck inside my head and it won't go away

It started when i first woke up and it's been here all day

I don't understand it. why did this one stick?

There's so many cooler songs i wish my brain would pick!
This song is stuck inside my head and i can't get it out.
What makes it even worse is that that's what this song's about
The doctor said don't worry. it won't stay for long
But every time i go to her she's humming this dumb song.
I hope you never hear it. but if you do, be strong.
Hey i think the stupid thing is finally gone)
Nope!