We report the synthesis and properties of a new organic-inorganic hybrid lead perovskite (OIHP), azetidinium lead bromide (AzPbBr3), possessing the 6H-perovskite structure (space group P63/mmc with a = 8.745 Å, c = 21.329 Å). This compound has a band gap of 2.81 eV and remains stable for > 6 months in the ambient environment. DFT simulations are in fairly good agreement with experiments and indicate that AzPbBr3 is a direct band gap semiconductor. A partial solid solution with the cubic (3C) perovskite methyl ammonium lead bromide (Az1-xMAxPbBr3) is possible. In Az-rich, 6H compositions the lattice volume and band gap are invariant with x (£ 0.3); whereas in the MA-rich 3C phase (0.8 £ x £ 1.0) the lattice parameters and band gap increase with increasing Az content. Although the relatively large band gap AzPbBr3 makes it unsuitable for photovoltaic applications, the results indicate Az + is a suitable alternative organic A-cation for band gap tuning of OHIPs.