Sasaki-Einstein Twist of Kerr-AdS Black Holes

We present Kerr-AdS black holes with equal angular momenta in arbitrary odd spacetime dimensions \ge 5. The solutions include three non-trivial parameters, mass, angular momentum and an additional parameter \delta. For a special value of $\delta$, by twisting the Killing vector fields of the black holes, we reproduce the compact Sasaki-Einstein manifolds constructed by Gauntlett, Martelli, Sparks and Waldram. We also discuss an implication of the twist in string theory and M-theory.