Japanese Hologram Pop Star Performes on Letterman [VIDEO & POLL]

Advancements in technology is replacing humans all over the world and it looks like pop singers are now just as vulnerable as the rest of us. Japanese pop star Miku who has racked up around 88 million views on YouTube and opened for Lady Gaga performed last night on David Letterman as the musical guest. She performed her song "Sharing the World" and she is also a hologram.

She has no actual form and is created using a vocal synthesizer and other digital technology known as a "Vocaloid" singer. She is not the only "Vocaloid" singer in Japan, she is just the most popular.