Naughty Boy was just on the UK radio Vodafone Big Top 40 (the biggest chart radio show, not the official chart tho, based on iTunes real time)
These aren't exact quotes as I had to type everything really quick but he said:
It could have been a summer song but thinks this is a great time for it to be released and it has a soul to it that makes it appropriate for this season too.
He said Bey is an amazing, gifted artist and singer. Working together was completely mutual (in relation to internet jokes). He always wanted to work with her.
She was just as much a part of creating the song as him and Arrow. She really loves music and really wants to be apart of everything to do with creating music, and only her and Arrow could have been on the song. They have spiritual conversations and he has her number.
He then said he would speak to them again when the song charts (it will be #5 as it's iTunes):
http://www.bigtop40.com/radio/player/