Going Public!

Jon Hamm has quietly been dating actress Anna Osceola for two years, but the duo just made their red carpet debut at the Oscars — and a source tells Us it was a big deal! “He’s extremely private,” the source says of Hamm, 51, noting that it took him a long time to heal after splitting from his girlfriend of 18 years, Jennifer Westfeldt, in 2015. But thanks to Osceola, 34, he’s found love again.

“He wanted to show off that this is his girl,” adds the source, “and that he’s committed and happy.”