Kerr/CFT correspondence
The Kerr/conformal field theory 'correspondence' is an extension of the usual anti de Sitter/CFT correspondence or gauge-gravity duality to rotating black holes.
The duality works for black holes whose near-horizon geometry can be expressed as a product of AdS3 and a single compact coordinate. The AdS/CFT duality then maps this to a two-dimensional conformal field theory, from which the correct Bekenstein entropy can then be deduced.
The original form of the duality applies to black holes with the maximum value of angular momentum, but it has now been speculatively extended to all lesser values.