This is some major league music.

The Mets anthem “OMG,” performed by infielder Jose Iglesias, had a huge win of its own this week.

The fan favorite pop hit enjoyed an increase of nearly 70% in streams on Wednesday, when the Mets defeated the Phillies in the NLDS, a rep from Spotify told The Post.

Iglesias, 34, a native of Cuba, who doubles as Latin singer Candelito, performed the beloved tune on the field after their win — as his teammates cheered him on.

Flushing, Queens native Jasmine Buzeta was at Wednesday’s game, which happened to fall on her birthday, and said the song stirs up a “unique set of emotions” for Amazins’ fans.

“It’s more than a song, it celebrates the spirit of the game. The connection between the sport and the song creates a feeling of shared enthusiasm and admiration,” she said.

Since its June release, the song was most streamed on Spotify in the tri-state area on Oct. 4 — the day after the Mets beat the Brewers in the NL Wild Card Series.

On Friday, Iglesias released a remix with Pitbull, right in time for the team’s National League Championship Series run.