US rapper shares untitled demo and guest spot on new SZA song 'Child's Play'
Hip-hop artist shares latest track recorded at his LA home
The pair performed together in Chigago
Original demo track for 'Life Around Here' appears online
Hip-hop star to headline London Forum on July 13
The pair have moved in together in Los Angeles to work on new music
Chicago rapper features in the pop star's new promo
The Chicago rapper performed the track at a secret show in his hometown earlier this week
The US hip-hop artist will continue to work with the Mercury Prize winner in Los Angeles
'Good Enough' and 'Back To School Pack' were originally released in 2009