Songs:

Your cat!

Might be
Kathleen by the Catfish

The Jonas brothers... Neon Brother maybe?>

Hmm. These are clearly 4 stars and a loser... Stars by Demi

Some lady with dermatitis. NBT - Itch

It's a traffic light! Traffic Lights by Lena.
Albums:

Brad looks like he might be a whistler. Graveyad Whistling by NBT.

These girls look catty. And like they might shove someone off a Balcony. So The Balcony by Catfish and The Bottlmen

Is this cat eating Liverwurst? Conchita Wurst.

The sky in this picture steals the show like a thief. Nothing But Thieves - Self-Titled.

It looks cloudy. Chance of rain?
How'd I do?
