Music Store/KaraokeCloud/Preview
Currently, KaraokeCloud does not offer previews of their songs.
You need to sign up for streaming in order to stream songs from KaraokeCloud. To do this, go to Preferences->Stores->Edit Music Store Settings->KaraokeCloud, then click "Log In…" or "Create Account…".
Eventually, kJams will enable previewing directly within the kJams interface, you will be able to hear and see a 20 second clip of every song, even if you have not signed up for streaming.