Doreen Tess Waddell (July 10, 1965 – March 1, 2002), also known by her stage name Do'reen, was a singer who worked with Soul II Soul, The KLF and the Phunklawds.
Waddell sang lead vocals on Soul II Soul's "Feel Free" and "Happiness (Dub)", and backing vocals on other tracks, on the album Club Classics Vol. One. She sang backing vocals on the KLF's "Justified And Ancient (All Bound For Mu Mu Land)". Her solo career included a collaboration with D'Influence on "Ain't Gonna Walk In Your Shadow No More".
Waddell was killed on March 1, 2002 in Worthing. After being challenged by staff at a Tesco store on suspicion of shoplifting goods, including children's items, she ran through a rear fire exit and attempted to cross the A27 nearby. She was hit by three vehicles, dying instantly at the age of 36. She left a four-year-old son.