An overview of gravitational-wave sources for the planned NASA-ESA mission LISA (lisa.nasa.gov), including visualizations of black-hole binary mergers and extreme-mass-ratio inspirals. Video shown at the 215th American Astronomical Society Meeting (Washington, D.C., Jan 3-7 2010). For a video introduction to the LISA mission, see lisa.aei-hannover.de/?page=lisavideo.