What 21st Century bands do you listen to?

The Kaiser Chiefs are my favorite.
Cage The Elephant and Matt and Kim are the youngest bands in my collection.

You'll have to define what you mean by the label "21st century bands" for me.

Are they bands who recorded their first big hit in the 21st century?

Are they older bands who have new records that have made the top of the music charts in the 21st century?

Are they bands of a specific genre of music?

A band with an album made in the 21st century.