Matthew McConaughey is adding another notch to his resumé. From a potential political run to hinting at getting in a WWE ring, McConaughey's latest foray is his new YouTube channel. On Tuesday, McConaughey announced via Twitter that he will be joining the video-sharing platform and advised users to "subscribe, turn notifications on, and giddy up.." "McConaughey here, and I want to welcome you to my YouTube channel," the actor, 51, prefaced the announcement video.