This week's chart contenders
Every week the biggest names in music battle for the honour of claiming the top spot in The Vodafone Big Top 40, and we're expecting another huge fight for No. 1 on Sunday's show.
Find out who's in the running this week and let us know who you think will be No. 1 below...
Bastille are back with the follow-up to 'Pompeii', 'Of The Night' is a mash-up of two 90s classics.
Calvin Harris and Swedish DJ, Alesso have teamed up for their new single which features vocals from Hurts.
Lily Allen provides the soundtrack to John Lewis's new Christmas advert, The Bear & The Hare.
Avicii finishes off 2013 with his new single 'Hey Brother'.
One Direction are back with official music video for new single 'Story Of My Life'.