Talent-packed female group MAMAMOO are making their official debut with their title track  "Mr. Ambiguous" off their mini album 'Hello'!

The group had already gathered quite a bit of attention with their talents through pre-debut projects in collaboration with several artists like K.Will and Geeks, so their official debut has been a much awaited one. In addition to their vocals, all the members possess the skills to compose and write their own music, making this a group of singer-songwriters, which differentiates them from many other groups out there.

For their debut, the girls have also recruited CNBLUE's Jonghyun for an appearance in their music video for their title song, providing some eye candy as well while treating our ears to their awesome voices! Baek Ji Young also makes a cameo towards the end as well to provide some comic relief, while K.Will makes a brief appearance as the cameraman, Bumkey as the chorus, Rhymer as the camera director, Wheesung as the director, and Jung Joon Young as a staff member. See if you can spot all of them!

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So without further ado, check them out in the MV above!