Carrie Underwood won again for video of the year . The platinum-selling singer and former `` American Idol '' champion took home the country music ceremony 's top honor , video of the year , for her hit Country stars team with other musicians for mashup videos . Alan Jackson was presented with the first CMT Impact Award .
Carrie Underwood won again for video of the year . Country stars team with other musicians for mashup videos . Alan Jackson was presented with the first CMT Impact Award .