UKeabetswe 'KB' Motsilanyane (owazalwa ngomhla ka-8 Ephreli 1979), kwesinye isikhathi owaziwa nge- KB Mamosadi, ungumklomelo wemiklomelo eminingi ongumculi waseNingizimu Afrika, umculi, umbhali wezingoma, umdidiyeli, umlingisi, umdansi nongusomabhizinisi wesifazane.U-KB owazalelwa futhi wakhulela eMoruleng, eNorth West eNingizimu Afrika, ukhule enothando ngomculo nangobuciko esifundazweni. Ujoyine iqembu elidumile laseNingizimu Afrika, iCrowded Crew, eladubula laduma ngasekupheleni kweminyaka yama-1990. Ngo-2001, u-KB wajoyina i-e-TV soapie Backstage njengaye, eyayihambisana nokukhishwa kwe-albhamu yakhe yokuqala, i-Beautiful Vibrations (2002), eyayinengoma eyashisa izikhotha ethi 'OA lla', emnikeza igama elithi Mamosadi. Waziwa kakhulu ngezindima zakhe emdlalweni owuchungechunge owaziwa kakhulu iBackstage, Mthunzini.com, Rhythm City naku- 7de Laan. Wazalwa ngomhlaka 8 Ephreli 1979 eMoruleng, eNingizimu Afrika. Wake washada noTerry Pinana ngaphambi kokuba bahlukane ngo-2007. Ungumama wendodana eyodwa. UKK unama-albhamu angu-6 kuze kube yimanje, amenze waba ngumculi owaziwayo owathola izindondo waseNingizimu Afrika.Ungumculi ojikeleze wonke owake wasebenzisa izinkundla nabaculi bakuleli nabakwamanye amazwe, u-Eve, Sibongile Khumalo, Busta Rhymes, Beyonce, Prime Circle, Ashanti, Dwele noBrandy.