This year was busy for each of these men, and they all found big success through their respective talents.
For Timberlake who, on top of his much talked about MTV VMA performance with former bandmates 'N Sync, released two chart-topping albums.
While Timberlake took over the pop world, Lamar quickly rose to fame with his latest rap album, "good kid, m.A.A.d city," reaching gold status.
McConaughey, Ferrell and the late Gandolfini all starred in highly anticipated films; "Dallas Buyers Club," "Anchorman 2: The Legend Continues" and "Enough Said," respectively.
Read more about these stars in GQ's Men of the Year issue, which goes on sale Nov. 19.