Answer the question at the end by quoting:

The Sugababes are a British girl group formed in 1998 by Siobhan Donaghy, Mutya Buena and Keisha Buchanan. Their debut album, One Touch, was released in the UK through London Records on 27 November 2000. The album achieved moderate success, peaking at number 26 in April 2001 and eventually being certified Gold. In 2001, Donaghy departed the group amid rumours of a rift with Buchanan and the group were dropped by their record label.
Having already started work on a second album with new member Range, the trio looked for a new record label, eventually signing to Island Records. Their first single on the new label, "Freak like Me" scored the group their first UK number 1 single. Follow-up single "Round Round" also debuted on top of the UK Singles Chart and peaked at number 2 in Ireland, the Netherlands and New Zealand. Both singles were certified silver by the BPI. On the back of the success of the singles, the group's second album, Angels with Dirty Faces, debuted at number 2 on the UK Albums Chart and was later certified triple platinum, selling almost a million copies in the UK alone. It is to date their highest-selling album. In the UK, the third single from the album, a ballad titled "Stronger", gained the girls their third consecutive top ten hit in their native country. The track was released as a double-A side with "Angels with Dirty Faces" in the UK, the latter song chosen as the theme tune to The Powerpuff Girls Movie. A fourth single, the Sting-sampling "Shape", made the top ten in the Netherlands and Ireland in early 2003. The group's third album, Three, was released in late 2003 and reached number 3 on the UK Albums Chart, earning the group a BRIT Award nomination for Best Album. Certified double platinum, it has sold 855,000 copies to date. The album was preceded by lead single "Hole in the Head", which became the group's third UK number 1 single. It also reached number 2 in Ireland, the Netherlands and Norway, and became the Sugababes' first (and to date only) single to chart in the United States, reaching number 96 on the Billboard Hot 100. Follow-up single "Too Lost in You" appeared on the soundtrack to the film Love Actually and went top ten in Germany, the Netherlands, Norway and the UK. The album's third single, "In the Middle", was released in 2004 and garnered the group another BRIT Award nomination for Best Single; like its successor, the ballad "Caught in a Moment", it went to number 8 on the UK Singles Chart. In 2004, the trio sang on the Band Aid 20 remake of "Do They Know It's Christmas?", which went to number 1 in the UK in December. Around this time, the group's perceived "moodiness", alleged backstage catfights, and press junket tantrums were tabloid fodder in Britain. They were surrounded by continuous rumours of in-fighting within the group and constant split reports. Rumours suggested that Buchanan and Buena had bullied Range, although Range herself repeatedly denied such allegations; Buena later admitted that she "just didn't talk to her" when she first joined. Buchanan claimed there was only one serious fallout between herself and Range during a 2004 gig in Dublin, regarding Britney Spears' "Toxic".

did they do any singles

The album was preceded by lead single "Hole in the Head", which became the group's third UK number 1 single.

Answer the question at the end by quoting:

Ahmet Ertegun (, Turkish spelling: Ahmet Ertegun ([ah'met erte'jyn]); (July 31 [O.S. 18 July] 1923 - December 14, 2006) was a Turkish-American businessman, songwriter and philanthropist. He was best known as the co-founder and president of Atlantic Records, and for discovering and championing many leading rhythm and blues and rock musicians. He also wrote classic blues and pop songs, and served as the chairman of the Rock and Roll Hall of Fame and museum, located in Cleveland, Ohio. Ertegun has been described as "one of the most significant figures in the modern recording industry."
A memorial service for Ertegun was held in New York on April 17, 2007. A large part of the evening was given over to musical performances. Wynton Marsalis opened the tribute with the jazz standard "Didn't He Ramble", Eric Clapton and Dr. John performed "Drinkin' Wine Spo-Dee-O-Dee", and other performers included Solomon Burke, Ben E. King, Sam Moore, Stevie Nicks, Crosby, Stills, Nash & Young, and Phil Collins. Another informal salute to him took place in Los Angeles on July 31, 2007, the anniversary of his birth. The tribute took place at Grauman's Egyptian Theatre in Hollywood. Several of his friends shared anecdotes about their experiences with him and the assembled gathering then saw a special screening of the American Masters documentary Atlantic Records: The House That Ahmet Built. Among those who paid tribute to Ertegun in person were: Solomon Burke, Jerry Leiber & Mike Stoller, Keith Emerson, Peter Asher, Spencer Davis, the film's producer (and longtime friend) Phil Carson, Taylor Hackford and event producer Martin Lewis. Yusuf Islam, formerly known as Cat Stevens, came to America after a 20-year hiatus to attend the ceremonies. The Martin Scorsese film "Shine a Light" about The Rolling Stones concert held at the Beacon Theatre in New York contains a dedication to Ertegun and Andrea Corr's solo album Ten Feet High is dedicated "To the memory of Ahmet Ertegun". In honor of the barriers the Ertegun brothers broke during their time in segregated Washington, the current Turkish Ambassador to the U.S., Namik Tan, hosts a series of jazz concerts at the historical residence on Sheridan Circle in Washington, D.C. The "Ertegun Jazz Series," in collaboration with Jazz at Lincoln Center, revives the brothers' legacy of bridging cultures and bringing people together with one common objective: celebrating music. In that same spirit, Ambassador Tan is opening the doors of his home to residents of D.C. from various backgrounds - Members of Congress, Administration officials, academia, the media, business leaders, and others.

When did some of these memorial events take place?
A memorial service for Ertegun was held in New York on April 17, 2007.