Christina María Aguilera ( AG-il-AIR-ə, Spanish: [kɾisˈtina maˈɾi.a aɣiˈleɾa]; born December 18, 1980) is an American singer, songwriter, actress, and television personality. Referred to as the "Voice of a Generation", she is noted for her four-octave vocal range, musical reinventions, sustaining high notes including use of the whistle register, and...
—Katherine Center in Everyone is Beautiful
—Yong Kang Chan in Empty Your Cup
—Ursula K. Le Guin in The Dispossessed