Posted Thursday, Feb. 28, 2013, at 2:16 PM
NEW YORK, NY - DECEMBER 06: Spotify's founder and CEO Daniel Elk speaks at a Spotify event on December 6, 2012 in New York City. Elk, who started the Swedish music streaming business in 2006, introduced a variety of new additions to the popular music sight. Elk also announced that Spotify now has 5 million paid subscribers, 20 million active users and has paid out a half billion dollars to artist's record labels. (Photo by Spencer Platt/Getty Images)
To go along with its friend-driven listening feed and user profiles, Spotify has introduced a telltale "follow" button.