  We solve the O(N) vector model at large N on a squashed three-sphere with a
conformal mass term. Using the Klebanov-Polyakov version of the AdS_4/CFT_3
correspondence we match various aspects of the strongly coupled theory with the
physics of the bulk AdS Taub-NUT and AdS Taub-Bolt geometries. Remarkably, we
find that the field theory reproduces the behaviour of the bulk free energy as
a function of the squashing parameter. The O(N) model is realised in a
symmetric phase for all finite values of the coupling and squashing parameter,
including when the boundary scalar curvature is negative.
