Themeandsong is an online service that help you create a video playlist easily. You dont need to have a youtube account. Select your favourite youtube videos and add them to the playlist.
Playlist is played automatically. Take a cup of coffee and enjoy your playlist. It is amazing because everyone also love, like and want to share your playlist. Themeandsong uses facebook authentication for login. Themeandsong does not keep any your data so dont be worry about the privacy.