Jazz:
* Ella Fitzgerald: Cullum has expressed admiration for her vocal agility, phrasing, and ability to swing.
* Nat King Cole: Cullum has often mentioned Cole's smooth vocals and piano playing as influences.
* Oscar Peterson: A piano legend, Peterson's technical mastery and improvisational brilliance have inspired Cullum.
* Bill Evans: Cullum has cited Evans' lyrical and introspective approach to jazz piano as an influence.
* Miles Davis: Davis' innovative and experimental approach to jazz has inspired Cullum's own musical explorations.
Pop/Rock:
* Radiohead: Cullum has acknowledged Radiohead's influence on his songwriting and use of electronic elements.
* Coldplay: Cullum has cited Coldplay's ability to blend rock and pop sensibilities as an influence.
* The Beatles: Cullum has expressed admiration for The Beatles' songwriting and innovation.
Other:
* Stevie Wonder: Cullum has mentioned Wonder's talent for writing soulful and catchy melodies.
* Ray Charles: Cullum has cited Charles' charisma and vocal power as influences.
* Nina Simone: Cullum has expressed admiration for Simone's powerful vocals and political messages.
It's important to note that Cullum is a unique artist who has blended influences from various genres to create his own distinctive sound. He has been praised for his vocal versatility, piano skills, and ability to connect with audiences. He has also been known to experiment with different musical styles, showcasing his versatility as a musician.