Pearl Jam frontman Eddie Vedder wowed fans at a music festival in Seattle, Washington on Saturday (01Sep07), when he took the stage to perform with Crowded House. Vedder made his unannounced appearance at the city's Bumbershoot festival and sang vocals with Crowded House frontman Neil Finn on World Where You Live. The rocker, whose band Pearl Jam hail from Seattle, then played guitar on Something So Strong, to an ecstatic reception.