Question: Which artist is a member of Powerman 5000, Jun. K or Spider One?

Context paragraphs:
Anyone for Doomsday?: Anyone for Doomsday?  is the third full-length album by Powerman 5000, and was originally slated as the follow-up to "Tonight the Stars Revolt! ".  It was pulled by PM5K frontman Spider One two weeks before the release date.  Due to being too similar to previous work, the album was originally intended to merely be delayed and revamped.  However, during this time conflicts began to arise causing longtime members Dorian 27 (Dorian Heartsong) and Al3 (Allen Pahanish) to leave the band.  As a result, the album was scrapped due to Spider's unwillingness to release an album of half new members and half old.  The album was available for a while on Powerman 5000's official website through Spider One's record label, Megatronic Records.  The promotional copies featured artwork that was different from the copies available on the website.  The album however was taken down due to legal reasons.  The album is now available in full on Spotify.  The physical copy of the album has become a collector's item.

When Worlds Collide (Powerman 5000 song): "When Worlds Collide" is a song by the band Powerman 5000 from their album "Tonight the Stars Revolt! ".  The song is virtually always the last song to be played at concerts .  It is one of the band's most well-known songs and has been used in the video games "Tony Hawk's Pro Skater 2", "WWE Smackdown!  vs. Raw", and in the 2000 film "Little Nicky".  Spider One has stated that the song is about social classes.  In 2016, the band accused Square Enix of stealing the song for use in their popular MMO "".

Jun. K: Kim Min-jun (; born January 15, 1988), better known by his stage name Jun.  K, is a South Korean singer, songwriter, record producer, rapper, dancer and actor.  He is the main vocalist of 2PM.

Halfcocked: Halfcocked (also known as Half Cocked, Halfc*cked or Half-Cocked) was an American hard rock band.  Influenced by 1970s hard rock and punk rock, along with 1980s glam metal, they started out in Boston in 1997 and signed with independent label Curve of the Earth Records.  In 1999 the band placed third in the finals of the WBCN Rock & Roll Rumble, being the first "wild card" act to play in the finals.  They signed with DreamWorks imprint Megatronic Records (headed by Powerman 5000 frontman Spider One) and moved to Los Angeles in 2000.  After numerous delays, they released one final album—"The Last Star"—before splitting up.

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.

Rob Zombie: Rob Zombie (born Robert Bartleh Cummings; January 12, 1965) is an American musician, filmmaker and screenwriter.  Zombie rose to fame as a founding member of the heavy metal band White Zombie, releasing four studio albums with the band.  He is the older brother of Spider One, lead vocalist for American rock band Powerman 5000.

Powerman 5000: Powerman 5000 (sometimes abbreviated to PM5K) is an American rock band formed in 1991.  The group has released eight albums, gaining its highest level of commercial success with 1999's "Tonight the Stars Revolt! ", which reached number 29 on the "Billboard" 200 while spawning the singles "When Worlds Collide" and "Nobody's Real".  The band's latest release, "Builders of the Future", came out in 2014 on T-Boy Records, and the group has been on tour in support of the album.  Frontman Spider One is the younger brother of fellow metal musician Rob Zombie.

The Good, the Bad and the Ugly Vol. 1: The Good, the Bad and the Ugly Vol.  1 is a compilation album by Powerman 5000 released in 2004.  It contains rare and unreleased tracks from the early days of Powerman 5000.

Charlee Johnson: Charlee Johnson (also Charlee Johnsson) is an American drummer, guitarist and songwriter, originally from San Bernardino, California.  Johnson was a founding member and chief songwriter of Utah punk band Deviance / 3½ Girls.  The band relocated to Boston, Massachusetts and signed with Curve of the Earth Records for their sole EP, "Rule".  Johnson then left to form Halfcocked (then known as Half Cocked) with guitarist Tommy O'Neil, bassist/backing vocalist Jhen Kobran and lead vocalist Sarah Reitkopp, later adding guitarist Johnny Rock Heatley who guested on debut album Sell Out (Halfcocked album) and joined as a full member with second album .  Halfcocked relocated to Los Angeles and signed with DreamWorks in early 2000 by Powerman 5000 frontman Spider One, released final album The Last Star in 2001 (produced by Ulrich Wild), then folded after a brief tour.  Johnsson went on to join childhood hero Danzig for a brief stint as "Charlee X", before joining award-winning Nirvana tribute band, Pennyroyal.

Mike Tempesta: Mike Tempesta is a rock guitarist and an artist relations manager.  He also goes by the moniker "M.33".  He was credited for rhythm guitar on the 1990 Anthrax album "Persistence of Time".  Before his career as a musician, he was a guitar technician for Anthrax's Scott Ian.  He was a member of Human Waste Project, and played rhythm guitar in the band Powerman 5000 until his departure in 2005.  He performed on the debut album of Scum of the Earth, once again with his brother John Tempesta, and has since left the lineup.  After leaving Powerman 5000, he took up a job as an artist relations manager for Yamaha Corporation of America, but soon left and eventually was hired as an artist relations manager for Fender Musical Instruments Corporation, overseeing the Jackson, Charvel, and EVH brands.

Supporting paragraphs: Jun. K Spider One
Answer: Spider One