United Kingdom, March 19 -- Bruce Willis' daughter says her father is "doing great" as he celebrates his 70th birthday.

The 'Die Hard' actor - who was previously diagnosed with Frontotemporal dementia (FTD), a degenerative disease, which causes behavioural changes and communication difficulties - turns 70 on Wednesday (19.03.25), and his and ex Demi Moore's daughter Rumer Willis encouraged fans to wish him a happy birthday.

When asked in an Instagram Stories Q+A session on Tuesday (18.03.25) how Bruce is, amid his health battle, Rumer said: "He's doing great, thank you for asking.

"It is actually his 70th birthday tomorrow so please wish my papa a big happy birthday."

Last month, the 'House Bunny' actress, 36, admitted her dad was "gr...