Harris and Ocean joined friends for dinner at celebrity favorite Nobu in Malibu, California, with the DJ wearing a crewneck black sweatshirt and gray jeans.
The outing follows Harris' return to work at Las Vegas' Omnia, where he performed a nearly two-hour set on Friday night.
"Las Vegas, how you feeling?" Harris, 32, asked from his booth during the show. "I feel good."
Calvin Harris (second from left) and Frank Ocean (third from left)
AKM-GSI
Calvin Harris
AKM-GSI
Swift, 26, has also kept busy since the breakup, surprising a fan at his New Jersey wedding with a special performance of her hit "Blank Space" on Saturday.
