Pre-sales allow tickets to be purchased before going on general sale
Alexander sold merchandise for Eagles of Death Metal
Members of shock-rock band also make a cameo appearance
118 people were killed at Paris music venue Le Bataclan last week
Official Chart Company say boyband's 'Made In The A.M' is currently 14,000 sales in front of Bieber's 'Purpose'
Live music affected in French capital following multiple deaths at Bataclan venue
129 people were killed in the attacks, with 89 civilians losing their lives at an Eagles Of Death Metal gig at Le Bataclan
Subscribers can sign up to new Apple Music service
Could the 1974 track be this year's Christmas Number One?
Davide Martello has revealed the backstory about his moving performance