A car seat cover diaper bag for infants includes a diaper bag which is configured for mounting on a baby seat. The diaper bag preferably has one or more pockets for holding baby implements so a separate diaper bag does not have to be carried by the caregiver of an infant. The diaper bag also preferably includes mechanisms for holding toys in front of an infant and playing music for an infant seated in a baby seat. The diaper bag also has a mechanism for monitoring an infant seated in a baby seat.