Jerry Seinfeld slipped in another shot at Lady Gaga in his debut last night as a commentator for the Mets.
The TV comic — and Met superfan — joined announcer Keith Hernandez, who guest-starred in a famous “Seinfeld” episode, in the booth for 4 1/2 innings last night.
The comedian’s wife, Jessica, arranged for the cameo appearance as a Father’s Day present, saying Jerry always wanted to try his hand at baseball announcing.
Of course, the night turned out to be more about laughs than baseball.
“It’s fair to say that we’re all big fans of Lady Gaga — lame, out-of-it white guys in their mid-50s is her core audience,” said Seinfeld sarcastically.
It was his second rip at the eccentric singer, whom cameras caught standing in Jerry’s luxury box two weeks ago as she flipped two fingers at Citi Field fans and fotogs.
“But I’m very protective of my Met fans. I love my Met fans and I did not like . . . the finger,” he said last night. “It was disrespectful.”
Seinfeld showed he knows his baseball, too.
In the fourth inning, Jason Bay lofted a fly ball that forced Tiger outfielder and ex-Yankee Johnny Damon, 36, to move quickly to make the grab.
“Is that Johnny Damon in center? What’s he doing out there?” Seinfeld asked, teasing Damon in the World Series hero’s return to New York. “Get him in. He can’t cover that much ground.”
david.li@nypost.com