Sir Paul McCartney said Wednesday that money raised by his next single will be used to help the families of New York firefighters killed and missing in the Sept. 11 attacks on the World Trade Center.

The former Beatle's latest single, "From a Lover to a Friend," is scheduled for worldwide release on Oct. 29. More than 340 firefighters of all ranks were killed or are among the missing in the rubble of the twin towers.

McCartney was in New York on Sept. 11 and said he was "able to witness the tremendous heroism that has come out of the city, including the bravery of the firefighters.

"I have great admiration for the courage those guys showed. I feel a connection with them because my father was a volunteer firefighter in Liverpool during World War II,'' he said.

On Oct. 20, McCartney will take part in "The Concert for New York," a four-hour extravaganza at Madison Square Garden also featuring Mick Jagger, Macy Gray, Eric Clapton and The Who, to aid victims of the attacks.