Pop star Selena Gomez has used an emotional speech at the American Music Awards to reveal how depression left her "absolutely broken inside" stemming from the auto immune disease Lupus. She spoke after winning the award for favourite rock/pop female artist. Pop star Ariana Grande was named artist of the year. Lady Gaga, Bruno Mars and Twenty One Pilots performed at the ceremony, which took place at Microsoft Theater in Los Angeles. Drake and Justin Bieber were the night's big winners, taking home three awards each; while British star Zayn was named new artist of the year.