Hollywood's homeless didn't know what hit 'em yesterday, when celeb couple HARRISON FORD and CALISTA FLOCKHART (aka Ally McBeal) served up a Thanksgiving treat for Los Angeles' down-and-outs.

The kind-hearted millionaires donned aprons and name tags (just so people know,... you know... it can't hurt) for the annual free turkey and trimmings meal.

Ford and Flockhart joined Los Angeles Mayor, Antonio Villaraigosa, at the Los Angeles Mission, where they dished up scrumptious Thanksgiving meals for the less fortunate.

Apparently, loads of stars are turned away from helping out at the Thanksgiving Day charity serving - because there are only 500 dinner service spots available.

Perhaps these two needed the publicity? (Cynical? Us?) No, seriously, how fab to see celebs giving something back. We approve.