Do you know any celebrities?

Some of you may remember I have posted on here about my mother who is 99. Living in sheltered accomodation she has been burgled a number of times. During the last one a few months ago, her bracelet was ripped off her wrist and he tried to ripp off her necklace. My mother punched him in the face and sounded the alarm and he ran off. This has left her constantly worried it may happen again. Well, in August she celebrates her 100th birthday. Due to her lack of mobility, we will not be able to take her out to celebrate, so we have the idea of putting together a series of 100 celebrity videos, lasting 10 -15 seconds wishing her a happy birthday. So do you know any celebrities who would be willing to send a video clip? Believe it or not she still uses her laptop and uses Facebook to keep in contact with friends and family. Hope you can help.