Despite his incarceration and having to sing into a telephone without (we assume) being able to hear the track, Lil Wayne sounds to be in not only good form, but excellent spirits. And not only is he keeping his skill set sharp, stunts like this help ensure he won't fade from the public consciousness before he's a free man again. Well played, Lil Wayne. Well played indeed.
Download the track and hear it for yourself (Right click and choose "Save File As"). [Via Fader]