Question: The "To You I Belong" singers broke up when when which member decided to leave?

Context paragraphs:
A Todo Rock: A Todo Rock is Menudo's thirteenth album in Spanish.  It features Ricky Meléndez, Johnny Lozada, Charlie Massó, and new members Ray Reyes and Roy Rosselló.  Ray Reyes replaced Xavier Serbiá after Xavier reached the age limit.  Roy Rosselló replaced Miguel Cancel after Miguel decided to quit the group.  This was the first time that a member decided to leave before his time was due.  According to an interview made in 1998, Miguel was unhappy that he was not able to sing his songs after a sudden voice change and opted to leave before his scheduled departure, thus being replaced by Roy.

Purple Spirit Singers: The Purple Spirit Singers is a group of male traditional Indigenous singers, led by Brandon Barberstock of the Tyendinaga Mohawk Territory, who sing in various drum styles (see Pow Wow Singers, Hand Drum Singers, Round Dance Singers, etc.).  This group originally formed when a collective of Indigenous students studying at Western University (London, On.)  decided that they wanted to create a group to share songs, teachings, and positive energy within the group and throughout the community.  The name translates from English into Anishinaabemowin as Zhoomin-Innande Manitou Negamowaad - meaning Purple Spirit Singers.

B*Witched discography: The discography of B*Witched, an Irish pop girl group, consists of two studio album, one extended play and one compilation.  The group released their debut single "C'est la Vie" on 25 May 1998.  Despite mixed reviews, it reached Number 1 on the UK charts, making them the youngest female group ever to do so, and also made Number 9 in the US.  Subsequent singles "Rollercoaster", "To You I Belong" and "Blame It on the Weatherman" also topped the UK charts.  The group's debut album, "B*Witched", was released in October 1998, reaching Number 3 in the UK charts and was certified Double Platinum in the UK and Platinum in the US.  B*Witched's second album, "Awake and Breathe", released almost exactly a year after their debut, peaked at Number 5 on the charts and was certified Platinum.  Singles from the album were less successful than earlier releases ("Jesse Hold On" reached Number 4, "I Shall Be There" Number 13 and "Jump Down" Number 16 in the UK).  The latter two appeared on their new American EP, "Across America 2000", along with live tracks and the earlier cover of "Does Your Mother Know".  However, in September 2002, the group officially split when O'Carroll decided to leave the band.

B*Witched: B*Witched are an Irish girl group consisting of twin sisters Edele and Keavy Lynch, Lindsay Armaou, and Sinéad O'Carroll.  Originally active between 1997 and 2002, they enjoyed success in both Europe and North America between 1998 and 2000, releasing two albums and eight singles, all of which made the UK Top 20.  Their first four singles, "C'est la Vie", "Rollercoaster", "To You I Belong" and "Blame It on the Weatherman", all reached number one in the UK Singles Chart.  In 2002, having sold over 3 million albums worldwide, B*Witched were dropped by their record company.  Soon afterwards, when O'Carroll decided to leave, the group split up.  In 2006, the Lynch sisters formed a group, Ms. Lynch, frequently performing B*Witched material at live shows.

24/20 order: The 24/20 order or 24/20 declaration was a Mozambican operation allowing the Portuguese to leave the country after the independence of Mozambique on 25 June 1975, if they wished.  Armando Guebuza its creator made this rule such that the Portuguese had only 24 hours to leave and could carry only 20 kg of baggage, hence its name.  Pancho Guedes (a famous Mozambican architect) was one of the 180,000 Portuguese that left the country, he was left penniless after carrying only 20 kg of valuables.  Many Portuguese felt they didn't have a choice but to leave as they did not support the Marxist government.  However, 20,000 Portuguese decided to stay and one of them was the famous Lemos family that was famous for its painters and writers.

Races and factions of Warcraft: The fantasy setting of the "Warcraft" series includes many fictional races and factions.  Most of the primary protagonists of the series belong to either the Horde or the Alliance.  However, there are a variety of neutral races and factions, who are either friendly or hostile to both the Horde and the Alliance.  All player characters belong to either the Horde or the Alliance, with a character's faction decided by its race.  One exception is the pandaren, who can choose to become members of either faction.

Calico System: Calico System was a metalcore band from St. Louis, Missouri.  The group formed in 1998 and released several albums under the Eulogy Recordings label after successful LP releases and abundant touring.  They announced their disbandment in 2007, stating each member decided to pursue their own career.

To You I Belong: "To You I Belong" is a song by Irish girl group B*Witched.  It was released as the third single from their eponymous debut album (1998).  It reached number one on the UK Singles Chart in December 1998.  It was their third UK chart-topping single.

John Poulos: John Poulos (born March 31, 1947) was the original drummer for The Buckinghams.  He was a founding member of the Chicago area band in 1965.  His mother Ann and his father John Sr.,were very proud of their youngest child in a family of solid Greek heritage.  He graduated from Roosevelt High School in the Albany Park neighborhood of Chicago, Illinois in 1965.  Lead guitar player Carl Giammarese lived only a few blocks away from John Poulos in the Albany Park neighborhood of Chicago.  His nickname since his late teens was "Jon Jon". John Poulos was the leader of a high school band in Chicago called "The Pulsations".  He approached singers George LeGros and  Dennis Tufano who sang harmonies in an acapella group called The Darsals to come join his band,"The Pulsations".  Local Chicago-area deejay and booking agent @ Willard - Alexander agency Carl Bonafede attests to the fact that Jon Jon personally recruited singers Dennis Tufano and his close friend George Legros at Gordon Tech high school to the band Jon Jon Poulos approached Carl Bonafede head deejay who spun records for Dan Belloc's dances at the Holiday ballroom about becoming the manager of John's high school band "The Pulsations".  When USA Records released The Buckinghams from their contract, the band had a #1 hit on the Billboard Hot 100 charts with Kind of a Drag.  The members voted to part ways with personal manager Carl Bonafede.  Jon Jon Poulos and Dennis Tufano flew out to Los Angeles to meet with James William Guercio to seek management and a new record deal.  The meeting with Guercio led to The Buckinghams signing a new record contract with Columbia Records.  John went into the music management side of the music business after the Buckinghams agreed to part ways in 1970.  John managed his fellow ex-Buckinghams Carl Giammarese and Dennis Tufano when they formed a duo called "Tufano & Giammarese".  "When The Buckinghams broke up in 1970 and Nick departed for a career in R&B and Marty wanted to go a different direction, Dennis Tufano and Carl decided to form a duo, Dennis and Carl.  We put together a demo CD, with the help of Peter Shelton and his wife, and John determined to manage us and find us a recording deal.  Reaching for the stars, he reached a zenith: John brought us to Ode Records, where we signed with Lou Adler, became “Tufano and Giammarese” and spent 7 years of our career together."  John Poulos managed several other Illinois bands, most notably a band from the Fox River Grove area called Boyzz from Illinois.  He died of heart failure in his Chicago home just short of his 33rd birthday in 1980.  Carl Bonafede maintains there never would have been a Buckinghams band if not for the commitment of Jon Jon Poulos.  His love of music and dedication to the band was unique.  He often shared discussion of the business side of music with "the Screaming Wildman".  John had one child, a daughter, Polly who was born in September 1970.

John Garcia (singer): John Garcia (born September 4, 1970) is a vocalist and songwriter.  Garcia is best known as the vocalist and founding member of Kyuss, Slo Burn, and Unida.  Garcia recently performed in Vista Chino with former Kyuss drummer Brant Bjork although the band broke up in 2014 after a falling out which caused Garcia to leave the band.  Garcia and Bjork have since decided to continue their individual solo projects, with Garcia releasing his debut album "John Garcia" on July 25, 2014.

Supporting paragraphs: To You I Belong B*Witched
Answer: Sinéad O'Carroll