Rookie duo 15& will be singing their own rendition of JYP senior artists the Wonder Girls.

Yesterday, a teaser poster with the words '15& Sound', 'December 7 3PM' and 'Be my Baby' were written. 15& will be singing their own versions of JYP senior artists songs every two weeks.

They chose to start with Wonder Girls' "Be My Baby" and it will be released on their YouTube channel on December 7. This '15& Sound' series will run a total of 5 episodes.

JYP Entertainment stated, "We are holding this mini event so that 15& may show their own talent and skills."

15& debuted in October with their debut song, "I Dream."