Metro Vocal Group is an established a cappella group who originally hails from USA. However, after 5 years of performing in Japan and Hong Kong, they decided to make Hong Kong their base. It is no surprise that they are able to sing Cantonese songs. However, it is surprising indeed to hear a great song to be sang by them. The following song is 海阔天空. It is originally sang by Wong Ka Kui, made famous by a cover done by Beyond. Enjoy.