The group won an award early in the show for Top Duo/Group and Liam took the time to thank their brother Zayn during the speech.
FYI: Niall is wearing Paul Smith with Prada boots. Liam is wearing a Sandro suit, Paul Smith accessories, and Christian Louboutin boots. Louis is wearing a Paul Smith jacket, Margiela t shirt, and Grenson shoes. Harry is wearing Saint Laurent.