Block B's Zico expressed his gratitude via Twitter on November 3 just after receiving news that his new single and EP "Boys and Girls" made an "all-kill" on music charts.

After releasing the single and EP at midnight, Zico swiped to the top of the charts with "Boys and Girls" along and the song "Day."

"Oh, I just checked now because I wasn't checking before," the 'Tell Me Yes Or No' rapper said in his tweet. "Thank you. First! Second! This is great accomplishment. I will work even harder and I will work to let you listen to more music."

The song "Boys and Girls" managed to conquer seven charts including Melon, Genie, Naver Music, Bugs Music, Mnet Music, Ole Music, and Monkey 3. "Day" is also floating on the top spots of the charts.