'Fenway Baby' steals the show during Red Sox vs. Astros ALCS game

A 5-month-old dressed in a sweatsuit, stocking cap and headphones became an overnight sensation Tuesday night during Game 4 of the American League Championship Series between the Boston Red Sox and Houston Astros.

At the game with his parents Antonio and Kaitlyn Cali, little Giovanni made an immediate connection with the crowd when his picture was shown on the video board at Fenway Park.

“We’re dancing and we just held him up like, ‘Hey, here’s my cute baby, we’re dancing,’" Kaitlyn told CBSBoston.com. "They showed him on the jumbotron and the whole entire stadium was like, 'Yeah!'”

The moment touched a nerve with fans inside the park, and it later spread on social media.

With the encouragement of fans in their section, Antonio held up Giovanni to cheers of "M-V-P, M-V-P," "Let's go baby!" and – when he started drinking from his bottle – "Chug! Chug! Chug!"

The Fenway camera came back to them "four or five times," Kaitlyn said, "and the place was going wild for him.”

Even some of the players started looking up into the stands to see what the commotion was all about.

The Calis said it wasn't the first time they have taken their son to a Red Sox game, but this one was an unforgettable experience.

“People were talking to us, 'Oh the baby is on Twitter, is on Instagram.’ There was a radio station talking about him," Antonio said.

"So he’s now the Fenway Baby.”

This article originally appeared on USA TODAY: 'Fenway Baby': Tiny Red Sox fan goes viral during ALCS vs. Astros