Here's a breakdown of the number of songs in each of her studio albums:
- Janet Jackson (1982): 10 songs
- Dream Street (1984): 10 songs
- Control (1986): 9 songs
- Rhythm Nation 1814 (1989): 14 songs
- janet. (1993): 19 songs
- The Velvet Rope (1997): 16 songs
- All for You (2001): 12 songs
- Damita Jo (2004): 14 songs
- 20 Y.O. (2006): 12 songs
- Discipline (2008): 12 songs
- Unbreakable (2015): 17 songs
In total, Janet Jackson has released approximately 145 songs across her studio albums. However, it's worth noting that my information may be outdated as Janet Jackson has released new music or compilations after September 2021. To obtain the most up-to-date information on her discography, you may wish to visit official sources or dedicated websites that track her music releases.