Singer-actress Jennifer Lopez and her former boyfriend Casper Smart were spotted together, and this has sparked rumours that they have reconciled.

Smart was photographed wrapping his arm around the "Booty" hitmaker's waist outside a Hotel Cafe Thursday night, reports eonline.com.

The star of "The Boy Next Door" wore a white blazer over a cleavage-baring top and blue skinny jeans. Her hair was styled in small bun and her bangs were curled. She completed her look with earrings, a studded clutch and pointy pumps. The 27-year-old dancer and choreographer, meanwhile, donned a grey blazer over a blue shirt, a pair of jeans and black shoes.

Smart attended the Z Zegna and GQ event at Phillymack Studios alongside Nick Jonas and Joe Jonas before meeting Lopez.

"He was in a really happy mood. He talked to Nick and Joe and also Reggie Bush," said a source.

Smart then met Lopez at a Hotel Cafe for another party where Nick, Queen Latifah and Meek Mill performed. An insider at the party says Smart and Lopez "didn't get into any touchy-feely PDA but were definitely together."