Aside from acting in so many series, a number of times, Music/MegumiHayashibara also sang for them as well (often the opening song).
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%% WeblinksAreNotExamples. Just a Youtube link with no further explanation is not a proper example. Explain what makes these songs awesome so that someone who hasn't even heard OF the tracks in question, never mind heard them, understands why they're awesome without clicking on the link. If the video is taken down, the example is literally completely empty.
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%%* [[http://www.youtube.com/watch?v=ZlHiifmrc7w Happy Birthday to Me]] (Anime/AllPurposeCulturalCatGirlNukuNuku)
%%** [[http://www.youtube.com/watch?v=xyhED48QRCw Fine Colorday]] (Nuku Nuku TV OP)
%%** [[http://www.youtube.com/watch?v=5EKmnHl3tdU Oyasuminasai Ashita wa Ohayou]] (Nuku Nuku TV ED)
%%* [[http://www.youtube.com/watch?v=n2oBloNm8dw Get Along]] ({{LightNovel/Slayers}})
%%** [[http://www.youtube.com/watch?v=u2Gvy06BqP4 Meet again]] (Slayers 10th Anniversary)
%%** [[http://www.youtube.com/watch?v=xL75aBBar64 Give a Reason]] (Slayers NEXT)
%%** [[http://www.youtube.com/watch?v=YzfDNvVmPU8 Breeze]] (Slayers TRY)
%%** [[http://www.youtube.com/watch?v=30hluDQwshs don't be discouraged]] (Slayers TRY)
%%** [[http://www.youtube.com/watch?v=iqWQHicjgWo MIDNIGHT BLUE]] (Slayers: The Motion Picture)
%%** [[http://www.youtube.com/watch?v=dY4SZNqZHfU raging waves]] (Slayers Gorgeous)
%%** [[http://www.youtube.com/watch?v=1BbwDeucdqc feel well]] (Slayers Premium)
%%** [[http://www.youtube.com/watch?v=Tcid3M0W0jM Just be conscious]] (Slayers RETURN)
%%** [[http://www.youtube.com/watch?v=Kh0AHYO9REU Going History]] (Slayers EX)
%%** [[http://www.youtube.com/watch?v=SudOmGZIdWw Kagirinai Yokubou no Naka ni]] (Slayers Special)
%%** [[http://www.youtube.com/watch?v=0-jJShrTEn0 Touch Yourself]] (Slayers Royal)
%%** [[http://www.youtube.com/watch?v=RywFIdQ-8Po Revolution]] (Slayers REVOLUTION)
%%** [[http://www.youtube.com/watch?v=gji1J2LQBeA Reflection]] (Slayers GREAT)
%%** [[http://www.youtube.com/watch?v=3lkAwVgBXBM Plenty of grit]] (Slayers REVOLUTION)
%%** [[http://www.youtube.com/watch?v=IxiQayX7h-8 Front breaking]] (Slayers EVOLUTION-R)
%%** [[http://www.youtube.com/watch?v=A0kw7AzQyFE Sunadokei]] or "Hourglass" (Slayers EVOLUTION-R)
%%* [[http://www.youtube.com/watch?v=uur3hRLEK4U ~infinity~]] (LostUniverse)
%%* [[http://www.youtube.com/watch?v=gulz_T4BdXQ Sakura Saku]] (LoveHina)
%%* [[http://www.youtube.com/watch?v=W2Bu0Sn4sSk Successful Mission]] (Anime/SaberMarionetteJ)
%%** [[http://www.youtube.com/watch?v=DlI-41cWhTM I'll be there]] (Anime/SaberMarionetteJ - Beware, video is spoiler-tastic)
%%** [[http://www.youtube.com/watch?v=8_CCytCryrA Hesitation]] (Saber Marionette J Again)
%%** [[http://www.youtube.com/watch?v=myXVvdoKcr8 Proof of Myself]] (Saber Marionette J to X)
%%** [[http://www.youtube.com/watch?v=SZPDFurYVwI Lively Motion]] (Saber Marionette J to X)
%%* [[http://www.youtube.com/watch?v=f4gS-UvgP6o Over Soul]] (ShamanKing)
%%* [[http://www.youtube.com/watch?v=45NE4aFSHXA Northern lights]] (ShamanKing)
%%* [[http://www.youtube.com/watch?v=J1-mGMuXqP4 Omokage]] (ShamanKing)
%%* [[http://www.youtube.com/watch?v=zTR0l8mwhPU brave heart]] (ShamanKing)
%%* [[http://www.youtube.com/watch?v=aUmalHRKK98 Alchemy of Love ~Ai no Renkinjyou~]] (Tenchi Muyo in Love)
* [[http://www.youtube.com/watch?v=zK0Lso4lU_M Anata no Kokoro ni]], the ending theme of ''Anime/AbenobashiMahouShoutengai''. The yearning tone of Music/MegumiHayashibara'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, nothing will.
** The opening theme, [[http://www.youtube.com/watch?v=4aq0uSGyHuo Treat or Goblins]].
* Her songs for the newer ''Anime/NeonGenesisEvangelion''. We've got [[http://www.youtube.com/watch?v=NGQK7s_pxe4 Shuuketsu no Sono e]], [[http://www.youtube.com/watch?v=agDCkLSKQmE its Ayanami ver.]], and [[http://www.youtube.com/watch?v=cAbYfpxoOIA Shuuketsu no Sadame]].
* The songs [[http://www.youtube.com/watch?v=8a_Rv3zzdKw "Kyou no Hi wa Sayonara" ("Today is a Day for Good-bye")]] and [[http://www.youtube.com/watch?v=YxXkZzJUDh4 "Tsubasa wo Kudasai" ("Give Me Wings")]] from RebuildOfEvangelion were both performed by her.