It actually says:
I'm so Ronery / So ronery / So ronery and sadry arone / There's no one / Just me onry / Sitting on my rittle throne / I work rearry hard and make up get prans / but, nobody ristens, no one understands / Seems rike no one takes me serirousry / And so, I'm ronery / A rittle ronery / Poor rittle me / There's no one I can rerate to / Feewr rike a biwd in a cage / It's kinda siwry / but, not reawry / because, it's fiwring my body with rage / I'm the smartest, most crever, most physicawry fit / but, nobody erse seems to rearrize it / When I can the worrd maybe they'rr notice me / And untiwr then, I'wr be ronery / Yeaaaaah, a rittle ronery / Poor rittle me...