  We present an analysis of CMB anisotropies induced by global scalar fields in
the large N limit. In this limit, the CMB anisotropy spectrum can be determined
without cumbersome 3D simulations. We determine the source functions and their
unequal time correlation functions and show that they are quite similar to the
corresponding functions in the texture model. This leads us to the conclusion
that the large N limit provides a 'cheap approximation' to the texture model of
structure formation.
