The pair have teamed up for new single It All Belongs To Me, which serves as their first duet since 1998s The Boy Is Mine.The song was produced by Rico Love and will feature on the stars respective new albums, which are Monicas New Life and Brandys 2/11.It All Belongs To Me is based around two failed relationships and the act of separating their possessions following the split.Lyrics include: I know you mad, cant take no more, but put that back, that aint yours. Have a fit, slam the door but leave them bags on the floor. That s**t belongs to me.It All Belongs To Me will be officially released on April 9.