David Cassidy, Danny Bonnaduce Sing Partridge Duet Onstage

And to think they did it without any help from Reuben Kincaid!

A mini-Partridge Family reunion was held Saturday in Atlantic City when David Cassidy and Danny Bonaduce played on a song onstage together. They say it was only the second time in 40 years they've done so.

Bonaduce, a Philadelphia disc jockey, was Cassidy's younger brother on the 1970s TV hit, but lip synched and only pretended to play the bass guitar on the show. On Saturday, after he did a standup comedy routine to open the show at Resorts Casino Hotel, Cassidy got him to play "Doesn't Somebody Want To Be Wanted." Bonaduce learned that song for real when they played it together last October in suburban Philadelphia.

"The Partridge Family" ran on ABC from 1970 through 1974.