Mario Delgado (born April 18, 1980), better known by his stage name Mars, is an American rapper from the San Francisco Bay Area city of Pittsburg, California,[1][4] who often performs with a Hannibal Lecter-style mask.

He attended Liberty High School and Pittsburg Adult Education before dropping out of his regular curriculum and enrolling in various college courses, including photography, marketing, mass communication, and publication design.

[7] The incident was published in several notable hip-hop blogs and Bay Area newspapers, allowing Mad Insanity Records to gain a regional buzz.

That same year, Mars helped sign horrorcore pioneer Ganxsta NIP and released the Houston, Texas, artist's album The Return of the Psychopath nationwide.

When Black Market CEO Cedric Singleton observed the success Mars achieved with the project management of Ganxsta NIP, he was assigned to oversee the latest album from rap artist Big Lurch, All Bad.

The Rest In Peace moniker was shortlived, due in part to Mars requesting his release from the label to push his own Mad Insanity Records.

[11] On August 19, 2008, Psychopathic Records and sub-label Hatchet House released their Tunnel Runners compilation, featuring material from underground rappers and groups not signed to the label.

After Boondox experienced medical issues from a prior surgery, Mars replaced the artist on Insane Clown Posse's 2008 “Hallowicked Clown Tour.”[13] In 2009, soon after the release of his album School House Glock: Extra Credit, a project that blatantly poked fun at his previous controversy, Delgado received international attention once again when Mars fan Richard Sam McCroskey killed four people.

On June 17, 2014, Empire Distribution released his entire discography digitally, including new singles “Hold On,” “Hurt ‘Em,” and “Overnight Change.”[18] In October 2015, Mars was asked to interview his favorite horror figures for a takeover of CBS Radio's website Man Cave Daily.

After landing interviews and photoshoots alongside actress Mena Suvari, Insane Clown Posse, and Sid Haig, he was asked to work full-time as a celebrity blogger.