Day & Night (Isyss song)

"Day & Night" is a R&B song by the American girl group Isyss, released as their debut single in 2001. It features rapper MC Lyte and was the lead single from their debut album, The Way We Do. The song is a mid-tempo track with lyrical themes of love and longing, contrasting the feelings experienced during the day versus those at night. It gained moderate success, reaching the Billboard Hot 100 chart. The song's production and the vocal performances of the group members, combined with MC Lyte's verse, were generally well-received by critics. The music video for "Day & Night" featured the group and MC Lyte in various settings, visually representing the song's theme.