The singer has parted ways with her long-time aide, who has looked after her music career since her debut in 2006, reported Contactmusic.
This comes after Lily slammed her record label for making her release 'rubbish' light-hearted pop songs like 'Air Balloon' from her comeback album 'Sheezus' over less commercially-viable tracks like 'Hard Out Here'.
"Lily guides her career herself a lot but will need someone new to work with her. Todd had been with her for a long time so it was a blow to lose him," a source said.
Before finding a new manager, Lily, 29, is heading to Glastonbury festival this weekend, where she will take to the stage before Arcade Fire.
The mother-of-two - who temporarily quit the music industry in 2009 to raise her daughters Ethel, two, and Marnie, 16 months, with her husband Sam Cooper - recently said she felt frustrated by her lack of control over her music career.