I Care 4 U features both album cuts and previously unreleased tracks and demos, recorded between 1993 and March 2001. The title track was written by
Missy Elliott and
Timbaland, who also produced the song, and was recorded at the Magic Mix Studios and Music Grinder Studios in Los Angeles in 2000. Aaliyah began to record the song for her second studio album
One in a Million (1996), but it was completed after that album had finished post-production, thus she saved it for
Aaliyah. Timbaland also wrote and produced "Don't Know What to Tell Ya", which was co-written by
Static Major and recorded at the
Manhattan Center Studios. In 1999, while Aaliyah was recording her
eponymous third studio album (2001) at the Manhattan Center Studios, she requested Austin and Bishop to play her a couple of tracks they had produced with other artists, including "Miss You", for which Ginuwine had already lent his vocals. Bishop later commented: "She was like, 'I want to cut this record' [...] She got on the phone, called him and said 'Hey I know you cut this record already, but I would love to cut it'." It was originally recorded for
Aaliyah at the
Sony Music Studios in New York City, but did not make the album's final cut. When the song was left unused, it was given to American duo
Changing Faces, who included their version on their third studio album
Visit Me (2000); however, Aaliyah's original version ended up being included on
I Care 4 U. Altogether, Natalie Nichols from the
Los Angeles Times categorized the albums material as a "minimalist blend of hip-hop, funk, soul and dance-music". ==Release and promotion==