EO2 was a Cantopop dance group in Hong Kong.

The members are Eric Tse (謝凱榮), Eddie Pang (彭懷安), Osman Hung (洪智傑) and Otto Wong (王志安).

Hung starred in a Hong Kong movie called Permanent Residence in 2009, where he appeared as 'Windson', one of the two main characters.

Unusually for a Hong Kong film, Hung stripped naked several times in the film, with his private parts fully revealed on camera in several scenes.

This article on a Hong Kong band or other musical ensemble is a stub.