Rascal Flatts recently announced a new Facebook application which allows users to create their own “mash-up” music video of the group’s hit single “I Won’t Let Go.” Users can upload up to three videos and four photos into the generator to create a custom music video that they can share with friends via Facebook or with a hyperlink to an online page. Fans can also download a “toolkit” that includes video snippets, photos and other assets to create a more custom music video with their own software. After creating a video online or uploading a video into the mash-up gallery, fans are entered to win a trip to the set of the next Rascal Flatts music video shoot, where they will “put you in the director’s chair.”