According to the Recording Industry Association of America, streaming music has officially surpassed physical music sales for the first time in the U.S. In addition, streaming is poised to take the lead from digital downloads as the top source of revenue for the music industry and could do so as early as next year. “Streaming currently accounts for about one-third of overall spending on music, totaling a little more than $1 billion for the first six months of the year,” reports Bloomberg. “The shift toward streaming is likely to accelerate.” “The data continues to reflect the story of a business undergoing an enormous transformation,” said Cary Sherman, chairman of the RIAA.