Selena Gomez, 19, appears to wear a pair of control underwear to perform at Jingle Ball

Are those Spanx we spy Super slim Selena Gomez, 19, appears to wear a pair of control underwear to perform at Jingle Ball

Are those Spanx Selena Gomez wore what appeared to be a pair of Spanx as she performed at the Jingle Ball on Thursday night in Sacramento, California

Flash: What appeared to be a pair of the control underwear was clearly on display under the teen”s super short red-sequined tutu dress as she belted out her tunes

Not a care in the world: The apparent wardrobe malfunction didn”t appear to bother the singer, who did a rendition of two Katy Perry songsincluding the pop star”s current release “The One That Got Away

Christmas cheer: Selena certainly got into the festive spirit

Living doll: With her perfect complexion and red lips, Selena looked like a living doll in this picture she posted on her Instagram account

Early Christmas present: Meanwhile, the teen recently revealed that she got an early Christmas present, with the news her mother Mandy and stepfather Brian, pictured here with Selena, are expecting a child

Standing by her man: Selena has been stoically standing by her boyfriend Justin Bieber, as the 17-year-old goes through an ugly paternity battle