A plethora of solution-processed materials have been developed for solar cell applications. Hybrid solar cells based on light absorbing semiconducting polymers infiltrated into mesoporous TiO 2 are an interesting concept, but generating charge at the polymer-metal oxide heterojunction is challenging. Metal-organic perovskite absorbers have recently shown remarkable efficiencies but currently lack the range of color tunability of organics. Here, we have combined a fullerene selfassembled monolayer (C 60 SAM) functionalized mesoporous titania, a perovskite absorber (CH 3 NH 3 PbI 3-x Cl x ), and a light absorbing polymer hole-conductor, P3HT, to realize a 6.7% efficient hybrid solar cell. We find that photoexcitations in both the perovskite and the polymer undergo very efficient electron transfer to the C 60 SAM. The C 60 SAM acts as an electron acceptor but inhibits further electron transfer into the TiO 2 mesostructure due to energy level misalignment and poor electronic coupling. Thermalized electrons from the C 60 SAM are then transported through the perovskite phase. This strategy allows a reduction of energy loss, while still employing a "mesoporous electron acceptor", representing an exciting and versatile route forward for hybrid photovoltaics incorporating light-absorbing polymers. Finally, we show that we can use the C 60 SAM functionalization of mesoporous TiO 2 to achieve an 11.7% perovskite-sensitized solar cell using Spiro-OMeTAD as a transparent hole transporter.