Pithos 1.1.1 is a native Pandora Radio client for Linux. It’s much more lightweight than the Pandora.com web client, and integrates with desktop features such as media keys, notifications, and the sound menu. The latest release Pithos 1.0.1 comes with many new features, including a redesigned UI and icon. This release is a bug fix release that fixes occasional erratic buffering behavior
Source Pithos Homepage.
To install Pithos just run the following commands via your systems Terminal.
sudo add-apt-repository ppa:pithos/ppa
sudo apt-get update
sudo apt-get install pithos
That's it enjoy.