Piano Man to the rescue!

Billy Joel played good Samaritan when he came to the aid of a 65-year-old woman who had fallen in a Hamptons crosswalk.

The best-selling recording artist was cruising on his motorcycle in East Hampton Village on Monday when he saw the woman had taken a spill.

Dressed in jeans, baseball cap and a leather biker jacket, the legend, who’s playing monthly shows at Madison Square Garden, lent a hand to first responders and carried the woman’s belongings to the side of the road.

Joel then chatted with the unidentified woman as she sat on a nearby bench.