Good cover songs for teen girls?

I was wondering what would be good covers to do on youtube :) I'm into artists such as P!nk (some songs), Miley Cyrus, Katy Perry, and Selena Gomez, and Taylor Swift, also some Kelly Clarkson songs too :) So any songs like those artists would be awesome :) Thank you so much :) And no rude answers please :) Only serious ones :)