The song that Denise and her boyfriend Eddie are listening to is Sponji Reggae by 24-7 Spyz, first recorded on their 1989 debut album, Harder Than You, three years after this episode aired.
The song that Vanessa and Robert are listening to in the kitchen when Cliff comes in is Cosmic Slop, the title track from Funkadelic's 1973 album.
" Sponji Reagge" is by Black Uhuru NOT 24-7 Spys