The New York Mets are pulling out all the stops to keep their postseason dreams alive ... as they brought The Temptations to Citi Field to perform the national anthem and sing their hit, "My Girl."
The song -- which became Mets shortstop Francisco Lindor's walk-up track back in May -- became popular with fans before his at-bats ... with many singing along to the tune even after it would be was cut off by the stadium speakers.
It wasn't just the fans enjoying the performance ahead of Game 5 .