radio idea

ok, wouldn't this be awesome--voice commanded radio.  you would hold down this button while driving and say "play bon jovi all" and all the bon jovi songs would play one by one.  or "play gaelic storm all scramble" and you'd get a random shuffle of gaelic storm songs.  or "play alternative" for alt music.  or "play classical no beethoven" for any classical music without ludwig.  or "play baby one more time"  is this already out there?  is someone working on it?  there's a crapload of money in that idea.  they could make it standard in luxury vehicles.  it might have to be some sort of satellite onstar thing.