Hello Venus is finally back with another comeback! They have released their sixth mini album, 'Mystery of Venus'. This album features four tracks including the title track, 'Mysterious', 'Runway', 'Glow' and 'Paradise'. For its title track, the girls have become amazing secret agents in 'Mysterious' music video! Check out the video below!

In the music video, Hello Venus are seen dressed up in colourful trench coats to allow fans to identify the girls as secret agents. The boy that they are investigating is none other than Seo Kang Jun! It seems that he has many secrets hidden in the train that the girls are in and the girls are determined to find it out! ASTRO's Cha Eun Woo also featured in the music video as a cute, at times curious, but frightened steward. Cha Eun Woo is always at the right places of finding out mysterious scenes! The girls are really thankful to these two for starring in their music video even though they were busy with their schedules!

The track, 'Mysterious', is a very easy to dance to song. It gives off a very jazzy feel at the beginning and gradually builds to a beautiful melody with very addictive beats. The wonderful sound of brass to accompany the track brings the "mystery" element to the track, making this fit amazingly to the music video! The song also showed a new side to the girls, but with many of the signature Hello Venus feminine charms here and there! It is definitely evident that the girls have worked extremely hard on this album.

Member Yooyoung have expressed her concern that the public may forget them so be sure to check out their music video and album to make sure that Hello Venus doesn't feel this way again! Overall, Hello Venus has made an amazing comeback and released a catchy track. Did you enjoy Hello Venus new track, 'Mysterious'? Let us know in the comments below!