2008 Japan Only Release by Bassist Billy Sheehan (Steve Vai). Compared to his two previous solo efforts, 2001's Compression and 2005's Cosmic Troubadour, Sheehan considers Holy Cow "an evolution; a further advancement."

Joining him are Guitarist Billy Gibbons from ZZ Top as well as Simone Sello and Paul Gilbert , celebrated Drummer Ray Luzier, and Doug Pinnick on vocals.