Carlos PenaVega got "in a fight backstage" with Shirley Ballas on Dancing with the Stars in 2015, according to his wife Alexa PenaVega.
The couple competed in the same series of the ABC Latin and ballroom dance show, and Carlos was so heartbroken when the actress and Mark Ballas, Shirley's son, were eliminated in week nine that he threw a tantrum behind the scenes, leaving the Queen of Latin caught in the crossfire.