Complex sentence: Carly holds a little karaoke and sings a song for him (although she is being a cruise ship singer), surprising everyone, including Chris, an additional five women were chosen, making 30 women.
Split into simpler sentences: Carly holds a little karaoke and sings a song for Chris (although she is being a cruise ship singer). Surprising everyone, including Chris, an additional five women were chosen, making 30 women.