The dispute originated from Brook's brief stint as a judge on Britain's Got Talent in 2009, where she was dropped after only one week.
Brook claims she was let go because she upset Ant and Dec by questioning their role on the show, which she believes subsequently hindered her career in the UK.
Ant and Dec, in their 2010 memoir, confirmed their annoyance, citing Brook's query about their role and their frustration over not being consulted about her hiring.
Piers Morgan, a fellow BGT judge at the time, corroborated that Brook blamed the hosts for her swift departure, acknowledging their displeasure played a significant part.