Music video for Taylor Swift's "Shake It Off"
Music video for Taylor Swift's "Shake It Off" single released August 18, 2014.
Taylor Swift's "Shake It Off" was the publishing industry's undisputed champ in 2014's fourth quarter: The song helped lead Sony/ATV (which reps Swift) to its 10th consecutive leading quarter and Kobalt Music Group (home to co-writers Max Martin -- the quarter's top songsmith -- and Johan "Shellback" Schuster) to hold steady at a solid No. 2.

However, Sony/ATV's market share dropped to 26.2 percent from a third-quarter 31.2 percent. (The company also topped the country list with a 22.8 percent share, down from 26.9 percent.) Other big moves came from Big Machine and Reach Music, both of which hit the top 10 for the first time, powered by Maddie & Tae's "Girl in a Country Song" and Charli XCX's "Boom Clap," respectively.
In other moves, Warner/Chappell had the largest market share gain from the third quarter, growing to 13.27 percent from 10.91 percent; while Round Hill Music also makes its debut as the new owner of Big Loud Shirt catalog. In November, Round Hill Music acquired the Big Loud catalog and formed a joint-venture with Big Loud Shirt, which has appeared -- identified as Big Loud Bucks Administration & Information -- consecutively in the Top 10 rankings since the fourth quarter of 2012.

SOURCE: The publisher administration rankings were compiled by the Harry Fox Agency, which researched the splits for the top 100 radio songs, compiled by Nielsen Music based on airplay on 1,557 U.S. radio stations.