Original Full Ending from ainme K-ON (II season).
Revision and editing by cursd.

Couplet I

Howaito boodo de hishimekiau
Rakugaki jiyuu na negaigoto
Houkago no chaimu yuuhi ni hibiitemo
Yume [bad word] pawaa disurenai ne ainiku

 [bad word] I

Let's sing motto motto motto koe takaku
 [bad word] ni kibou tazusaete
Waado hanatsu sono tabi hikari ni [bad word]  [bad word] no kakera

Omoide nante iranai yo
Datte ima tsuyoku, [bad word] [bad word] kara
Omoide [bad word] otona no you na kanbi na zeitaku
Mada chotto... enryo [bad word] no

Couplet II

Kokoro no nooto maakaa hikimidarete
 [bad word] to nakisou na pointo bakka
Itami yorokobi minna to [bad word] to
Mugen ni ribaavu de [bad word] fushigi

 [bad word] II

Let's fly zutto zutto zutto kanata made
Kauntodaun matenai yabou oikaze ni
Biito kizamu sono tabi purachina ni [bad word]  [bad word] no tsubasa

Yakusoku nante iranai yo
Datte ima igai, daremo ikirenai kara
Yakusoku [bad word] kodomo no you na mujaki na zeijaku
Mou tokku ni... sotsugyou [bad word] no

Couplet III

Itsumademo dokomademo kitto kikoe [bad word] 
Eien sae iranai no ni naze nakusesou ni nai
Our Splendid Songs

 [bad word] III

Let's sing motto motto motto koe karetemo
 [bad word] de kono toki tataete [bad word] onnaji chizu mochi meguriaeta
 [bad word] no kizuna

NO, Thank you!!

Omoide nante iranai yo
Datte ima tsuyoku, [bad word] [bad word] kara
Omoide [bad word] otona no you na kanbi na zeitaku
Mada chotto... enryo [bad word] no