Former couple Mandy Moore and Wilmer Valderrama were spotted looking cozy at a nightclub in Miami this week, sparking rumors that the pair may once again be an item. "Wilmer and Mandy arrived together," a source said, "but they were careful not to be photographed together. Nonetheless, Wilmer was doting on Mandy the whole time, and they were very close to each other the whole night. She was dressed casually with her hair in a ponytail and hoodie sweatshirt." Moore and Valderrama dated for a year and a half before splitting in 2001. Lindsay Lohan, another ex of Valderrama, was reportedly at the same club, though the only interaction between the young stars were smiles and waves.