Just as their individual teaser images had hinted, Boyfriend have gone for a much more mature sound and image as shown in their MV teaser for comeback song, "Obsession"!

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Hyunseong goes so far as to take off his shirt and show off his impressive abs, showing that they are no longer young boys, but have transformed into men! �Even their dance moves are more energetic and fierce with a new edge never before seen in Boyfriend.

Check out the teaser above!