Article Photos: Hippo Christmas tune singer returns to Oklahoma City

Allie Zimmerman, 3, sings along. Singer Gayla Peevey came back to Oklahoma City at the Zoo to sing her hit song from 1953, "I Want a Hippopotamus for Christmas" Sunday, November 20, 2011. Photo by Doug Hoke, The Oklahoman

Allie Zimmerman, 3, sings along. Singer Gayla Peevey came back to Oklahoma City at the Zoo to sing her hit song from 1953, "I Want a Hippopotamus for Christmas" Sunday, November 20, 2011. Photo by Doug Hoke, The Oklahoman