Jeff Mangum and Spider One, are singers, of which nationality?
Spider One Michael David Cummings (born August 25, 1968), better known as Spider One, is an American singer, songwriter, rapper, record producer, and director. He is the founder and only consistent member of the nu metal band Powerman 5000 and the owner of Megatronic Records. He created the horror/black comedy mockumentary series "Death Valley", which aired on MTV for one season in 2011.
JD McPherson Jonathan David "JD" McPherson, born April 14, 1977, is an American singer-songwriter and guitarist from Broken Arrow, Oklahoma. He is known for a retro sound rooted in the rock and roll, rhythm and blues, and rockabilly music of the 1950s. Among influences such as Little Richard and Fats Domino, McPherson also draws inspiration from artists as diverse as the Wu-Tang Clan, Pixies, and Led Zeppelin.