If they awarded an Oscar for Best Good Guy, BRADLEY COOPER would win hands-down!

The suave hunk was filming his new flick “American Hustle” on a New York street when two young women approached and said it was their best friend’s birthday, that she was a HUGE fan and would be thrilled to death to meet him.

Sure, said Sir Galahad, bring her over.

No can do, said the girls, explaining that their starstruck pal was stuck in her office on the 20th floor, and her boss wouldn’t let her leave.

“Just give me a few minutes to finish my scene and I’ll go up with you,” promised Brad.

True to his word, the “Silver Linings Playbook” star went with the girls to the 20th floor, and when the amazed Birthday Girl saw him stroll through the door, she almost fainted.

“I heard it’s someone’s birthday today,” Brad said softly.

Stunned, the fan burst into tears, and wrapped her arms around his neck. “You’re the best birthday present I’ve ever gotten!” she squealed.

Brad posed for photos, and topped that by inviting all the girls to the set the next day to watch him film.

Now that’s a surprise party!