Then I found this on google: Preview for Sportify on Linux - a Debian install.
# 1. Add this line to your list of repositories by # editing your /etc/apt/sources.list deb http://repository.spotify.com stable non-free # 2. If you want to verify the downloaded packages, # you will need to add our public key sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 4E9CFF4E # 3. Run apt-get update sudo apt-get update # 4. Install spotify! sudo apt-get install spotify-client-qt