Rob Pattinson (and his freshly shaved head -- yikes!) accompanied girlfriend FKA Twigs to her concert in New York City last night, and after that the lovebirds went to an after party for the show at Miss Lily's in Greenwich Village.

While the British singer was a bit camera shy, she posed for a few photos, and the typically poker faced Rob even cracked a smile at one point. Come to think of it, we never saw him this giddy when he was with former flame Kristen Stewart! But we're not feeling so giddy about his buzzed mohawk -- talk about a hipster hair don't!

Over the weekend Rob attended another one of FKA Twigs' shows in the Big Apple at Manhattan's Terminal 5, and she was seen carrying a giant bouquet of flowers after the set.

"It's early [on] but they're having fun," an insider tells Us Weekly. Another source tells the mag, "He loves her voice, he loves her sense of style as well, how unique she is. She's a cool girl. His friends are much happier with him in this relationship than some of the others." Take that, K. Stew!