Miss A releases full audio for "Goodbye Baby"

Miss A just released the full audio for their newest single "Goodbye Baby" 2 hours ago through their official Facebook page.  The song is a mix of the 2 teaser versions released in the past week; it's a mix of electronic/rock/pop.  The song is strong throughout with a consistent beat.

What will Miss A's choreography look like with such a strong song?

BTW. Miss A's Jia's rap is amazing ~