Sukiyanen, Osaka., Naniwa Iroha Bushi, & Zukkoke Otokomichi are my favorite songs!
i recommend their mini album "Kansha ni Eight" first. then move on to the original albums!
PS. i think K8's capable of a serious song, but they got famous because of their fun songs. but the thing is, ever since, all they have been doing is fun songs. i'd like for them to switch it up a little. just for one single. then go back & do their crazy songs. XD