Justin Bieber and will.i.am are working on a "bigger than huge" song today.
Bieber, who is already planning to work with Drake and Kanye on his fourth album later this year, tweeted "@iamwill let's make a hit tomorrow!! #collab".
will.i.am, who as we know is quite partial to a #collab, replied: "I gotta feeling this song is ganne be bigger than huge."
It is not yet known if the song will feature on will's '#willpower' album or Justin's forthcoming 'Believe'.