Celebreleech

A individual usually totally bereft of actual talent or
fortune who habitually attempts to glom on to an

actual celebrity, hoping the fame or fortune will
rub off sufficiently to make them a "celebrity" also.
Some actually succeed, like reaching some sort of

critical mass, in becoming famous for being famous.

Having failed to extort pro footballer Shawn Merriman,
annoying celebreleech Tila Tequila has resurfaced

claiming to be the "fiancee" of heiress Casey Johnson.
(Not that she wants to stake a claim to any of the

Johnson fortune or anything...)