After vocalist Anza Ohyama ceased performing with the Sailor Moon musicals in 1998, she embarked on a solo career for almost two years, receiving help from guitarist Hiro and his brother Mar. They had a desire to play heavier music, so together they formed the band Deep Last Blue. They found bassist Kawady and drummer Okaji and changed their name to Head Phones President before releasing their first single, "Escapism", in 2000. Bassist Kawady left soon after and was replaced by Take the following year. Playing at small venues all over Japan, they started to gain more popularity. In 2002, the group released the EP ID, after which Take left due to family reasons and was replaced by Narumi. That year, Head Phones President had their first international tour, including a stop in New York City. Head Phones President's first album Vary was released in late 2003, after which the band returned to America for another short tour and started releasing CDs in the United States. Okaji left the band in October 2004, desiring to make his own music. They recruited support drummer Batch in January 2005. They continued to tour Japan, taking intermittent breaks to allow Anza to work on her solo career. Head Phones President released their first DVD, Toy's Box, in August 2006. The band desired to tour Europe, and in February 2007, they went to Sweden for two performances. In November, they performed at the Pacific Media Expo in Los Angeles, California. Their second full-length album Folie a Deux was released on December 12. In July 2008, they played the Formoz Music Festival in Taipei, Taiwan, and would return to the city again in July 2009. On October 7, 2009, the mini album Prodigium was released on the Spiritual Beast label, and was mastered at West Side Music by Alan Douches. Sud 2011 in France. On September 3, 2010, they released the self-cover album Pobl Lliw, which includes rearranged versions of old songs as well as some all new tracks. On September 19, 2010, Head Phones President performed at D'erlanger's Abstinence's Door #005 with defspiral and Girugamesh. The concert was streamed worldwide live on Ustream.tv. The band returned to New York City to play three shows as part of Frank Wood's 10 Days of Wood music event in November. On November 24, 2010, the band announced that guitarist Mar had resigned from the band due to unspecified personal reasons. The band publicly wished him well and stated that they will continue activities without him. On April 2, 2012, Head Phones President released "Purge the World", a memorial single for their US tour which began on April 6. Their third full-length album Stand in the World was released on June 6, 2012. In December 2013, the band went on a four date tour of China that took them to Hong Kong, Guangzhou, Beijing, and Shanghai. Head Phones President released their fourth album Disillusion on August 6, 2014. They also performed at Yoko Fest The Final on September 12 in memory of United's deceased bassist and leader and at Belgium's Metal Female Voices Fest on October 17 and 19, 2014. The band released their first compilation album Alteration on November 18, 2015, which also includes six remixes, in celebration of the 15th anniversary of their first EP. The music of Head Phones President was the genesis of the rock musicalStand in the World, written and directed by Shohei Hayashi, which ran at the Tokyo Arts Center from June 11–13, 2016. The band performed during the show which starred Erika Yamakawa, Manabu Oda, and Hikari Ono. Their fifth studio album, Realize, was released on May 17, 2017. Respawn, their sixth album, was released on July 24, 2019.
