Question: Which co-host of the broadcast event of "Children in Need 2015" is best known for her work in pop groups S Club 8 and The Saturdays?

Context articles: Rochelle Humes
Children in Need 2015
Rachel Hyde-Harvey
Hep Stars
Don Kirshner
Mollie King
I Dream
Jimmy Manzie
Datura (band)
Paul Collins (musician)

Rochelle Eulah Eileen Humes (née Wiseman; born 21 March 1989) is an English singer and television presenter, best known for her work in pop groups S Club 8 and The Saturdays.
 Humes has achieved six Top 10 hits with S Club 8 and thirteen Top 10 hits with girl group The Saturdays, including number-one hit "What About Us".
Children in Need 2015 is a campaign held in the United Kingdom to raise money for the charity Children in Need.
 2015 marks the 30th birthday of the charity's mascot, Pudsey Bear, since 1985, and the 35th anniversary of the appeal which culminated in a live broadcast on BBC One and BBC Two on the evening of Friday 13 November until the early hours of Saturday 14 November.
 The broadcast was hosted by Dermot O'Leary with Tess Daly, Fearne Cotton, Rochelle Humes and Nick Grimshaw as co-hosts.
 Shane Richie hosted the period the show was broadcasting on BBC Two.
Rachel Hyde-Harvey (born 21 March 1987 in Kettering, Northamptonshire) is a British actress and singer best known for her role as Amy in the CBBC's "I Dream" alongside S Club 8.
The Hep Stars was a Swedish rock group, formed in 1963 in Stockholm.
 During 1965-66 the band was the most successful of contemporary 1960s Swedish pop groups performing in the English language.
 Outside The Nordic Countries the band is best known as a launching point for the keyboard player and composer Benny Andersson, who went on to enjoy worldwide success with ABBA.
Donald Clark Kirshner (April 17, 1934 – January 17, 2011), known as The Man With the Golden Ear, was an American music publisher, rock music producer, talent manager, and songwriter.
 He was best known for managing songwriting talent as well as successful pop groups, such as the Monkees, Kansas, and the Archies.
Mollie Elizabeth King (born 4 June 1987) is an English singer-songwriter.
 She is best known for being a member of girl group The Saturdays.
 In the Saturdays, King has had thirteen top-ten and eight top-five singles, including the UK no.1 hit What About Us on the UK Singles Chart and five top-ten albums on the UK Albums Chart.
 Before The Saturdays, King was a member of another girl group, Fallen Angelz, with whom she appeared on "The X Factor".
 In 2015, King signed a solo deal with Island Records.
I Dream is a British children's musical television comedy programme aimed at and mostly about teenagers, which aired in 2004 (see 2004 in television).
 It was set at an esteemed performing arts college near Barcelona, Spain, and focuses on 13 teenagers who are invited to enrol at the college, Avalon Heights, over the summer.
 All eight members of the pop group S Club 8 star in the show alongside five other young actors and actresses and Hollywood film actor Christopher Lloyd.
James William Manzie, known as Jimmy Manzie or Jim Manzie, is an Australian musician (bass guitar, vocals, lead guitar) and songwriter for a variety of bands including rock revival band Ol' 55 (1975–1979), pop groups The Breakers (1979–1982) and The Fives (1982) before turning to solo work, production and composing for film/television scores and soundtracks.
 As a member of Ol' 55, Manzie wrote "On the Prowl" their top 20 hit single on the Australian Kent Music Report in late 1975, which was followed by their debut album, "Take It Greasy" which reached No. 3 on the Kent Music Report Albums Chart in 1976.
Datura is an Italian Techno band.
 It was created in 1991 by the musicians Ciro Pagano and Stefano Mazzavillani (ex-members of the Italian electro pop group "Gaznevada", one of the Italian pop groups of the decade of 1980) and the DJs Ricci (Riccardo Testoni) who is now deceased, and Cirillo (Carlo Andrea Raggi), who is one of Italy's most famous DJs and continues to work in Italy, Ibiza, Morocco, and England.
 The first single was "Nu Style", in the summer of 1991, followed by smash-hits as "Yerba Del Diablo", a cover of Visage's Fade to Grey and "Eternity".
 With "Angeli Domini", in 1995, DJ Ricci has left the group for other more techno independent projects.
 In 1997, their "Voo-Doo Believe?"
 reached number 17 on Hot Dance Club Songs.
 The name "Datura" is taken from a hallucinogenic plant used by the Yaqui tribe to see and talk with the gods in a "visionary trip".
Paul Vincent Collins (born 1956, New York City) is an American writer, author, music producer, and multi-instrumentalist.
 He is best known for his work in the power pop groups The Nerves, The Breakaways and The Beat.