Tiffany Dawn Thornton (born February 14, 1986[1]) is an American former actress,[2] radio personality and singer best known for her co-starring role as Tawni Hart on the Disney Channel Original Series, Sonny with a Chance[3] and in its third season, So Random!.

Thornton made her television acting debut in the pilot episode of the Fox sitcom, Quintuplets.

She then went on to appear in 8 Simple Rules, American Dreams, The O.C., Desperate Housewives, That's So Raven, Jericho, Wizards of Waverly Place and Hannah Montana.

for a third season due to the departure of lead star Demi Lovato to attend rehab, and premiered in early summer 2011 and ended in 2012, where Thornton reprised her role as Tawni Hart.

[8] In December 2009, Thornton became engaged to her boyfriend, Christopher Carney, a probation officer and former lead singer of the band The Prom Kings.