Colin Farrell kept cool by going shirtless after a sweaty yoga workout in LA with a female friend yesterday. His many tattoos were on display as he walked alongside his pal, and the two laughed while holding onto their yoga mats. Colin is back in LA after wrapping up two big movies. He recently finished filming Miss Julie in his native Ireland alongside Jessica Chastain and kept busy earlier in the year by working on Winter's Tale in NYC. Colin has also been hard at work on the promotional trail for his newest project, Epic, in which he voiced the character of Ronin, but took a break last month to celebrate Memorial Day at Joel Silver's annual bash in Malibu. The party wasn't the only recent fun for Colin, since he also marked his 37th birthday last Friday.