So, I think I became a bigger fan of Imagine Dragons when I saw them perform with Kendrick Lamar at the 2014 Grammys. It was an *amazing* performance by all.
Kendrick Lamar the rapper I have heard of.  This rock band Imagine dragons is not a band i am familiar with.
They're a US band out of Las Vegas -- but don't worry, they don't have a Vegas sound. ;-) Definitely an "epic rock" sound -- but one that paired well with Kendrick for one of their best known songs, "Radioactive".
I am familiar with the work of some artists of this decade, like Katy Perry or Taylor Swift.  I find some of the music enjoyable.  Most of the artists I remember are almost 8 years old.