Our search for core-collapse supernovae in Luminous Infrared Galaxies (LIRGs) with adaptive optics on Gemini North has enabled us to place the first empirical constraints on the fraction of supernovae missed by optical surveys. We have commenced a search with the powerful new GeMS/GSAOI facility on Gemini South, and our first epoch images of the LIRG IRAS 18293-3413 already reveal a new supernova not seen in any optical survey. We show preliminary light curve fits which yield information on the supernova's type and line-of-sight extinction.