Argument I have had with my sister

When I am trying to do my homework and Kaitlyn (my sister) is singing so loud, I swear some days it could brake a window.

"Kaitlyn!" I say, shouting so she can hear me, but carries on singing.

"I am titanium, shoot me down..." I hear kaitlyn yelling.

"Shut up Kaitlyn" I say, "You suck at singing" I say, trying to get her to stop.

Mum walks in.

"Whats going on" Mum yells.