Aside from acting in so many series, a number of times, Megumi Hayashibara also sang for them as well (often the opening song).
- Happy Birthday to Me (All Purpose Cultural Cat Girl Nuku Nuku)
- Get Along (The Slayers)
- Give a Reason (Slayers NEXT)
- Breeze (Slayers TRY)
- don't be discouraged (Slayers TRY)
- MIDNIGHT BLUE (Slayers: The Motion Picture)
- raging waves (Slayers Gorgeous)
- Just be conscious (Slayers RETURN)
- Going History (Slayers EX)
- Kagirinai Yokubou no Naka ni (Slayers Special)
- Revolution (Slayers REVOLUTION)
- Reflection (Slayers GREAT)
- Plenty of grit (Slayers REVOLUTION)
- Front breaking (Slayers EVOLUTION-R)
- Sunadokei or "Hourglass" (Slayers EVOLUTION-R)
- ~infinity~ (Lost Universe)
- Sakura Saku (Love Hina)
- Successful Mission (Saber Marionette J)
- I'll be there (Saber Marionette J - Beware, video is spoiler-tastic, so close the window as soon as it loads in case you haven't seen all of the episodes)
- Hesitation (Saber Marionette J Again)
- Proof of Myself (Saber Marionette J to X)
- Lively Motion (Saber Marionette J to X)
- Over Soul (Shaman King)
- Northern lights (Shaman King)
- Omokage (Shaman King)
- brave heart (Shaman King)
- Alchemy of Love ~Ai no Renkinjyou~ (Tenchi Muyo in Love)
- Anata no Kokoro ni, the ending theme of Abenobashi Mahou Shoutengai. The yearning tone of Megumi Hayashibara's voice, the lyrics, and the black-and-white images of Osaka's past; if all that together doesn't call up a sense of loss, this troper can't imagine what will.
- How about her new song, Shuuketsu no Sono e, in Rei mode?
- The songs "Today is the Time for Goodbye" and "Give Me Wings" ("Kyou no Hi wa Sayonara" and "Tsubasa wo Kudasai") from Rebuild of Evangelion were both performed by her