Robertdale Rulon Crow Jr. (born February 21, 1971) is an American singer and musician from San Diego, California, known for his involvement with the bands Pinback, Heavy Vegetable, Physics, Optiganally Yours, Goblin Cock, and Thingy. He has also led the bands Advertising, Alpha Males, Altron Tube, Byre, Cthugha, Fantasy Mission Force, Holy Smokes, the Ladies, Other Men, and Remote Action Sequence Project, as well as performing and releasing solo records under his own name and under the name Snotnose.