Pakistan, May 15 -- Days after hard-launching their two-year-old relationship on social media, supermodel Gigi Hadid and Hollywood star Bradley Cooper have now sparked engagement buzz.

American supermodel Gigi Hadid, 30, who finally made her long-rumoured relationship with Hollywood heartthrob Bradley Cooper, 50, Instagram official last week, has now sparked engagement talks, as she stepped out with a gold band on her wedding ring finger, before a source confirmed that the two are set to take their relationship to next level.

"Gigi and Bradley are in love," a well-placed industry source confirmed to a foreign publication. "She got everyone talking by wearing a ring, but she hasn't actually told anyone that they're married or even engage...