Last year, David Lowery's back-and-forth with NPR intern Emily White came in at No. 3 on our Beef List -- although, in truth, Lowery's issue was not so much with White, but the mentality she embodied: a general satisfaction with music-streaming services such as Spotify and Pandora -- services deemed by Lowery (and others) to underpay artists. This year, that cause was taken up by countless other musicians. Thom Yorke spoke out against Spotify, and removed the Atoms For Peace catalog from the service. Foals spoke out against Spotify. Johnny Marr spoke out against Spotify. So did Beck. So did David Byrne. And it wasn't just Spotify: Pink Floyd spoke out against Pandora, and David Lowery spoke out against lyric websites like Rap Genius. And this represents only a handful of the growing number of artists who took on sectors of the internet in 2013 in an attempt to express alarm or dissatisfaction at the ways in which the pie has been divvied. It's a war that will continue to find new enlistments and casualties in 2014, as new services like Beats Music and others try to wrest some market share away from Spotify, presumably not, however, with the interests of Lowery, et al., in mind.