"The reaction to Drag Me Down has been incredible. When we dropped the single we knew we had a good song, but we didn't expect such a huge reaction. We definitely didn't think it would become the highest debut on the Billboard Hot 100 chart this year! Again, we need to thank our amazing fans around the world for their constant, unconditional support." One Direction star Niall Horan and his bandmates are stunned by the success of their first single without Zayn Malik. The track debuted at number three on America's Billboard Hot 100 on Monday (10Aug15).