FILM:

Helen Mirren
Philip Seymour Hoffman
Meryl Streep

As for Helen, see HBO's Elizabeth I. Simply amazing work.

Music:

I won't list three because the mainstream music scene in America is so far off the mark when it comes to talent it really isn't funny. There are a handful of really great popular music artists and many, many great editors. That's what makes the world go round. I recommend finding a less capitalistic outlet than FM radio and BestBuy, like CANADA.