Big Bang's GD&TOP were chosen to be the image models for the LG Optimus 2X, and recently released a video introducing themselves from the set of their MV for "Knock Out." Fans caught a brief glimpse of the upcoming music video through the clip, in addition to a smooth endorsement of the product by the charismatic duo. Check out the video here: "Hello, this is Big Bang's GD&TOP and we've come to greet you with a new album. The world's first dual-core smartphone 2X was launched at the same time as our album.  As you all know, T.O.P and G-Dragon have come together for a unit promotion.  Today, we're at the set of the 'Knock Out' music video.  Viewers will be able to see the completion of this music video at the Optimus website.  Please look for the powerful Optimus 2X, that is as strong as our performances." Tip: Ammybabe