Who does not know the voice assistant Siri? Apple introduced popular feature on the iPhone 4S, iPhone 5, iPod Touch, iPad, and has become one of their flagship feature.

From the popularity of it, the question that then arises is who is the voice of the most popular features voice assistant in the world?

Behind the sweet voice and robotic Siri is Karen Jacobsen, a singer and songwriter from Australia.

Prior to her appointment as the voice of Siri, the blonde woman has also been doing voice for a service GPS Garmin, Navman, TomTom and Mio, as well as in some telephone and computer systems.

With that track record, she was called several television media in America as "The Dashboard Diva" and "The GPS Girl '. In fact, she ever had her own television show called Travel the World with The GPS Girl.

Want to know how to lunge her as Siri? Just look at the following video.