Alien Huang (28 November 1983 – 16 September 2020), also known as Xiao Gui (Little Ghost), was a Taiwanese singer, actor, television presenter, illustrator and fashion designer.

He was a member of Japanese TV Asahi's disbanded boy band HC3 in 2002 and Taiwanese Rock Records' disbanded boy band Cosmo (丸子) in 2003. He went on to release five solo albums and acted in movies and television dramas. He was known as the host of popular Taiwanese variety entertainment show 100% Entertainment, which he left in early 2016.

Huang was the founder and designer of AES (Alien Evolution Studio), a clothing brand which he established in 2008. He also published three illustration books.