I Know You is a follow up to Heartline which was released this September.
It is one of the many collaborations from Craig David's seventh studio album, set to be released in January 2018.
The album will be named The Time is Now and will feature the likes of JP Cooper, AJ Tracey, Ella Mai and Goldlink.
I Know You will be performed tonight on BBC One’s ‘Sounds Like Friday Night’, which Craig will be guest presenting.
Apparently, the 36 year old singer, songwriter, rapper had become friends with the members of Bastille after they played shows together in the past.