Complex sentence: In 2009, when he was 16 years old, Sykes auditioned for the boy band The Wanted which was held by Jayne Collins and was chosen as one of the five members.
Split into simpler sentences: In 2009, when he was 16 years old, Sykes auditioned for the boy band The Wanted. Auditions were held by Jayne Collins and Sykes was chosen as one of the five members.