['Mariah Carey. Photo credit: WENN. ... ', 'Whitney Houston. Photo credit: WENN. ... ', 'Christina Aguilera. Photo credit: WENN. ... ', 'Adele. Photo credit: WENN. ... ', 'Celine Dion. Photo credit: WENN. ... ', 'Aretha Franklin. Photo credit: WENN. ... ', 'Florence Welch. Photo credit: WENN. ... ', 'Beyonce Knowles. Photo credit: WENN.']