Zayn Malik and Gigi Hadid  | 4 Years

The British singer Zayn Malik is a heartthrob of this generation, and he shot to stardom as a member of the boy band One Direction. Since parting ways with the group, the 27-year-old has secured success as a solo artist with hit singles like Pillowtalk and Dusk Till Dawn.

Not too long after Malik’s engagement to Perrie Edwards broke off, he started dating the American model Gigi Hadid. Now, the two young celebrities, who have been in an on-and-off-again relationship for about four years, are expecting their first child together.