11'1'(,(,c/'o /tax wit/"Iy heen celehrated by 01'01110 peo/l/e for (f loug period of lilllC!. II p!ay.' (/ majnrrnroll' ill the socia! life of the Orolllo people. Irreccha is (/ rilual ceremony ill which Dromnsrnwars"i!) {/luI prai!iC! Waaqa. Moreover, it ellables Dromos to he IIl1ited (strellgthtJlI III1;Z) 'J, makernconciliatio ll (l lI/ung conflicting groups lIlId promote Ilteir (,II/Ili r e. The Irreec/UI ('('I'l'IIIO I/Y ('( ,Iecfedrnfor (his p(/rlicular study are Irreecha Horaa Arsadee (easlem showa) Gild Horan Bisiil (westernrns lu}1'(f). MallY scholarly works have so far beel/ dedicated 10 the sllIriy of the various aspects ofrnGromo /tiSIOI),. culture, belief alld folklore. However, 'h c.ve scholars have tOl{clled 111'0 11 thernIrredUl riuwl 0 1/ (1 as a passing remark. 111 other lVord I/O de/ailed study ('xc:/llsive/y or broadlyrndedica led 10 Irreec/w ceremollY (ri ll/al) has been carried 0111 with a view to properly documenlingrnil. The (' 1/1'/'('1/1 study Ny to jilllhis gllp.rn71le II/(/ill ohjective of this lhesis is To explore whell alld why Irreecha celebration; To (IIw~vzernthe process ollrreecha celebratioll at Horaa Arasadee (/1/11 /-Ioraa Bisill; To describe the actualrnplace where alJ(llhe ae/liallime whelllrrecha is pelf armed and to know the social vailles·ottachedrnto Il'l'e('//(/o ceremony. In order 10 cmy 0111 this research fhe fo llowing method is /lsed.rnThe r('s(!(frcher has employed qualitative research method, ellcompassing interview, pOl'licipall1rnob,'('/'I(lIioll ollli fucus-group disCIlSiofl, II/odditioll to these, photographs alld video shoOlillg havernul,'(I /W(,II fukell so us lU caplure fhe ell tire Jellillg al/d scel/ely . Bused 011 lhi,' mcthod, Ih t' iindingrnof the .wuly will be mention m' fo 110 IV.rnTo 1IlC'llfio" sO/lie of the jilldiug.· of this study: - Irreecho is a rilulil ceremony celebmled ill thernelllin' 0 1'0 1110 1(llId, there are two major types of IrreeclUl ceremonies: Il'reechli Tllllll (Irreecharncelehmted Oil 1II0ula;II) and Irreecha Maika (Irreecha celebrated 011 the ballk 0/ rivel), Ih ere arernvariatiolls across Drama lands regarding the celebration (nol uniform) and the ceremony isrnce/"braled by 1/1/ Oromos regardless oj Age, Sex alld slailis.