[2] The group have gained five UK number-one singles, two multi-platinum albums and two BRIT Awards, and have sold over 10 million records worldwide.

Blatt was born at University College Hospital in the London Borough of Camden and is named after American folk singer Melanie Safka.

She was born to a French mother, Hélène and a British Jewish father, David Blatt (known also as author of the book Manchester United Ruined My Wife), whose ancestors were from Poland and Russia,[4][5][6][7] and a younger sister named Jasmine.

Since her parents were not satisfied with the treatment for the condition in the United Kingdom they decided to move to France, where a specialist inserted three metal rods in her back.

The single sold over 1.2 million copies in the United Kingdom and was certified double platinum by the British Phonographic Industry.

The same year the group released their debut album, All Saints; it reached number two in the United Kingdom and was certified platinum five times for sales of 1.5 million.

Melanie began recording on her debut solo album in 2002, working with numerous producers including Sony Music production team Xenomania.

In late 2003 she released her debut single, "Do Me Wrong"; it reached number 18 in the UK and led to Blatt being dropped by her label due to its low charting.

She began working on a new album with independent label Sowlen Ankle Ltd written with, and recorded by, Matt Hales from Aqualung.

[12] From 2007–2010 Blatt worked as a presenter on the TV show The Hot Desk on ITV2 with co-hosts Nicole Appleton, Dave Berry, Emma Willis and Jayne Sharp.

[14] In February 2013, Blatt revealed she is "making music" and when asked about a solo comeback she said she was going to do something she never thought in a million years she would do.

Blatt and Walker would be joined by new husband-wife duo Willy Moon and Natalia Kills until their sacking, and replaced by Natalie Bassingthwaite and Shelton Woolwright.