A month after revealing the news to MTV's Rob Markman, Mac Miller hits Twitter with his collaboration with the mysterious Your Old Droog!!!!Still think Droog is Nas? The world will know once and for all next month, as he'll be making his debut performance at Webster Hall in New York City!! I don't think is its Nas but whoever dude is? He is crazy mad NICE!!! Peep the stream and you will see!!!