Jesse McCartney has an angry ex. We’ve obtained a photo of what appears to be the 22-year-old singer and star of ABC’s “Greek” lying naked on a bed, clad in nothing but a “G-string” made of candy. “An ex of his took it and has been sending it around,” says our source. A lawyer for McCartney said, “Mr. McCartney did not knowingly participate in the taking of this photo and did not consent to the taking of such a photo. In addition, the alleged photo of Mr. McCartney appears to have been manipulated and doctored by computer software.”