Idol groups Big Bang and Wonder Girls received hot reactions for new songs 'Monster' and 'Like This.'

The two groups, who previously met in 2007 through 'Lie' and 'Tell Me,' release their new music videos at the same time with completely different concepts and charms.

Big Bang utilized a shocking, devilish styling for 'Monster,' as the members replicated images of a devil, vampire, beast, and zombie.

On the other hand, Wonder Girls held an exciting dance party, which anyone can enjoy, for 'Like This.' Wonder Girls removed their original cute concept for a more mature and commanding charm through an electronic sound and hip hop beat.