What makes Wallflower by Diana Krall notable?

'Wallflower' was well-received commercially, debuting at number 1 on the Billboard Jazz Albums chart and reaching significant positions on other charts worldwide. The album's focus on familiar songs also sparked critical discussion about Krall's artistic direction, illustrating her versatility while maintaining her jazz roots. By the release of 'Wallflower' in 2015, Diana Krall had established herself as a prominent figure in jazz, following her commercial peak with albums like 'Glad Rag Doll' in 2012. This album marked a stylistic shift as it featured interpretations of classic pop songs from the 1970s and 1980s, showcasing her ability to bridge genres while appealing to a broader audience.