Barry Zito's pitching ability has dropped significantly since his relative dominance in the early part of this decade. However, he still pitches better than he sings. If you hate yourself and want to attack your own eardrums, then hit play. But don't say I didn't warn you.
All the people making a few dollars singing outside of EL-Train/Subway stations are offended by that. His "free spirt" persona worked a lot better when he was a good pitcher.