T-ara, a k-pop all female group collaborating with all male group, Supernova and the outcome is a really catchy and addictive music – Time to Love (TTL)..

Not all members of the two groups worked on the project. Soyeon, Eunjung, Hyomin and Jiyeon for T-ara and Jihyuk, Kwangsu and Gunil for Supernova.

T-ARA & Supernova – T.T.L(Time to Love)(Sep 20, 2009)

And check out some promo photos of the two groups for TTL: