In a near future I will update the Bio, including links to her Albunms covers. In the meantime, just a copy of Wikipedia's data.

Blossom has an official website, but it seems to me, it is also under construction.

Birth name Blossom Dearie
Born April 28, 1924(1924-04-28), East Durham, New York, USA
Died February 7, 2009 (aged 84), New York, New York, USA

Genres Vocal jazz, Cool jazz, Bebop, Swing, Traditional pop

Years active 1952–2006

Labels: Verve Records, Daffodil Records, Barclay Records, Capitol/EMI Records, Fontana Records

Notable instruments: Piano, Vocals

Was an American jazz singer and pianist, often performing in the bebop genre and known for her distinctive girlish voice.

Early career

Blossom Dearie was born on April 28, 1924 (or in 1926 according to some published sources), in East Durham, New York. Different sources state her given names variously as Blossom Margrete Dearie, Marguerite Blossom Dearie or Margrethe Blossom Dearie (listen to the Interview to NPR in this website).
As a child she studied Western classical piano but switched to jazz in her teens. After high school, Dearie moved to New York City to pursue a music career and began to sing in groups such as the Blue Flames (with the Woody Herman Orchestra) and the Blue Reys (with Alvino Rey's band) before starting her solo career.
She moved to Paris, France, in 1952 and formed a vocal group, the Blue Stars of Paris, which included Michel Legrand's sister, Christiane, and Bob Dorough. In 1954 the group had a hit in France with a French-language version of "Lullaby of Birdland". The Blue Stars would later evolve into the Swingle Singers. While in Paris she met her future husband, the Belgian flautist and saxophonist Bobby Jaspar. On her first solo album, released two years later, she plays the piano but does not sing.
One of her most famous songs from that period is "The Riviera", which was written and composed by Cy Coleman and Joseph McCarthy Jr. in 1956.

Late 1950s and 1960s

After returning from France, Dearie made her first six American albums as a solo singer and pianist for Verve Records in the late 1950s and early 1960s, mostly in a small trio or quartet setting. Dave Garroway, host of The Today Show and an early fan of Dearie, featured her on several occasions, increasing her exposure with the popular audience. In 1962, she recorded a song for a radio commercial of Hires Root Beer. As it proved very popular, the LP Blossom Dearie Sings Rootin' Songs was released as a premium item that could be ordered for one dollar and a proof of purchase.
In 1964, she recorded the album May I Come In? (Capitol/EMI Records). It was recorded, atypically for her, with an orchestra. During this same period, Dearie performed frequently in New York supper clubs and in 1966 made her first appearance at Ronnie Scott's club in London. She recorded four albums in the United Kingdom during the 1960s which were released on the Fontana label.

1970s and later

In 1974, Dearie established her own label, Daffodil Records, which allowed her to have full control of the recording and distribution of her albums. Dearie appeared on television throughout her career, most notably giving her voice to the children's educational series Schoolhouse Rock! Some of her pieces in this series were written by her good friend Bob Dorough, the jazz singer and composer. Her voice can be heard on "Mother Necessity", "Figure Eight" and "Unpack Your Adjectives".
Songwriter Johnny Mercer, with whom she collaborated for her 1975 song, I'm Shadowing You, gave one of his final compositions to Dearie for the title song of her 1976 Daffodil album, My New Celebrity is You.
Her distinctive voice and songs have been featured on the soundtracks of several films, including Kissing Jessica Stein, My Life Without Me, The Squid and the Whale and The Adventures of Felix. She also recorded songs with other singers, including Lyle Lovett.
Dearie continued to perform in clubs until 2006. One of the last remaining supper-club performers, she performed regular engagements in London and New York City over many years.
Dearie died on February 7, 2009, at her apartment in Greenwich Village, New York City.