8 member rookie group AOA revealed their fifth member today.

On July 20, FNC Entertainment revealed their fifth member, Yuna, who is the sub vocal of the group.

In the picture, Yuna is playing music using cups that have different amounts of water in it.

All the members that have been revealed so far have had fun and unique names that have been gaining attention.

Yuna's stage name, 'Yunaria' gives off an innocent and feminine vibe.

AOA, which stands for 'Ace of Angels' will reveal their 6th member tomorrow on July 21.