  Azimuthal angle correlations of charged hadrons were measured in $\sqrt
s_{NN}$ = 2.76 TeV PbPb collisions by the CMS experiment. The distributions
exhibit anisotropies that are correlated with the event-by-event orientation of
the reaction plane. Several methods were employed to extract the strength of
the signal: the event-plane, cumulant and Lee-Yang Zeros methods. These methods
have different sensitivity to correlations that are not caused by the
collective motion in the system (non-flow correlations due to jets, resonance
decays, and quantum correlations). The second Fourier coefficient of the
charged hadron azimuthal distributions was measured as a function of transverse
momentum, pseudorapidity and centrality in a broad kinematic range: $0.3 < p_T
< 12.0$ GeV/c, $|\eta| < 2.4$, as a function of collision centrality. In
addition, the third through sixth Fourier components were measured at
midrapidity using selected methods.
