will.i.am has collaborated with Britney Spears, Alicia Keys and Shakira on his solo album, #willpower.
He told Radio station Capital FM: "I have a song with Alicia Keys â me, Alicia and Swedish House Mafia. I have a song with The Beats, which is pretty grand.
"Me and Shakira have been trying to finish the stuff we started, and me and Britney is really crazy."
will.i.am also explained how the album will have a positive message for fans.
He added: "'#willpower' is just a reminder to myself of staying contestant with the dream â keeping the dream alive.
"It was all a dream when I was 15 years old â 20 years later I managed to take the dream from an idea to physicality. So '#willpower' is uplifiting songs, encouragement for those that need it."
'T.H.E (The Hardest Ever)' is released on February 5.