Born in Nanaimo, British Columbia, which is outside of Vancouver, Krall grew up in the western part of Canada and began studying the piano when she was four years old. By the time she was 15, she was performing jazz locally and with the encouragement of her father, a stride pianist with a vast knowledge of such Twenties and Thirties keyboard masters as Fats Waller, James P. Johnson, and Earl Hines, she devoted herself to music. "I think Dad had every recording Fats Waller ever made," she says, "and I tried to learn as many as I could."

Krall was still a teenager when she was awarded a scholarship to the prestigious Berklee College of Music in Boston. After two years in Boston, she moved to Los Angeles, where she met her first jazz heavyweights, including bassist John Clayton, drummer Jeff Hamilton, pianist/singer Jimmy Rowles, and Ray Brown, the legendary bassist who served as her musical mentor. In 1993, the Montreal-based Justin Time Records released her debut album, Stepping Out. The following year she signed with GRP Records and recorded Only Trust Your Heart, which featured Ray Brown on bass and Stanley Turrentine on tenor saxophone. Only Trust Your Heart also marked the beginning of her association with Tommy LiPuma, a collaboration that would continue until LiPuma’s untimely passing in 2017.

Krall’s success continued with her subsequent releases All for You, and Love Scenes but her watershed moment came in 1999 with the release of When I Look in Your Eyes, her first release for the historic Verve record label. The recording spent an unprecedented 52 weeks in the #1 position on Billboard's Jazz chart, won two Grammy Awards and went platinum in the U.S. and Canada. Krall's next album, The Look of Love, continued her international success and became a top ten seller on Billboard’s Top 200 Album charts. Since then she has released a string of recordings that have created an impressive body of work, including her critically acclaimed Turn Up The Quiet, which won two Juno Awards including “Producer of the Year.” Love Is Here To Stay found Diana collaborating with her long-time friend and colleague Tony Bennett. It was recorded with the Grammy award winning Bill Charlap Trio and the stunning result is a subtle, sophisticated and beautifully rendered love letter to The Gershwins’ music and their status as one of the premiere songwriters of the American popular standard. It is a masterclass in vocal delivery and phrasing and the command that Bennett and Krall display of the material in both their duets and solo tracks makes it appear effortless, belying the honed skills of the vocalists. The duet tracks include “Love Is Here to Stay,” “S’Wonderful,” “They Can’t Take That Away from Me” and “Fascinating Rhythm,” among them.