Grimspoon
The Hoff
Not many people know this but it wasn't the actual celebrity herself that replied. Her personal assistant, which is not human, by law, replied to these messages. The actual celebrity is held in containment tanks submersed in velvet-like liquid whilst being fed Lindt Chocolate until it's time for the next show.
Also, celebrities have expiry dates under their left-feet.
These facts are all true. I made them up myself, that way I know their true!
It all makes sense now!
/bows