«Let Me Know» song by Janet JacksonThe track «Let Me Know» appears in: Discipline [CD/DVD] [Japan Deluxe Edition] Date: 2008/02/26 Track: 23 / 25 Discipline Date: 2008/01/01 Track: 23 / 23
![Discipline [CD/DVD] [Japan Deluxe Edition]](https://www.sortmusic.com/covers_yaJ/janet-jackson/2008_170_155_Discipline%2520%255BCD%252FDVD%255D%2520%255BJapan%2520Deluxe%2520Edition%255D.jpg)
