We've already given you the lowdown on the big T-shirt cuts for 2015, but where do these celebrated shapes come from? It's not like we just made them up, you know. No, we've been scouring the world of runways, street style and — of course — well-dressed famous dudes to identify the key styles and sharpest ways to rock them. Here's our countdown of five celebrities who bring strong T-shirt game and the particular shapes they favor.