Question: What do Danny Bonaduce and David Cassidy have in common?

Context articles: Come On Get Happy: The Partridge Family Story
I Know My Kid's a Star
David Cassidy (album)
Greatest Hits (Partridge Family album)
Didn't You Used to Be...
Old Trick New Dog
Breaking Bonaduce
The Partridge Family
Danny (talk show)
Getting It in the Street

Come On, Get Happy: The Partridge Family Story is a 1999 ABC television biopic about the 1970–1974 television series "The Partridge Family", focusing on star David Cassidy and co-star Danny Bonaduce through the four years the show was on.
I Know My Kid's a Star is an American competitive reality television TV show for aspiring child actors and their parents.
 The show aired from March to May 2008 on VH1.
 The show's host and primary judge is Danny Bonaduce, who is best known as having been a child actor himself on the 1970s TV show "The Partridge Family".
 Casting agent Marki Costello stars as co-host and secondary judge.
 The show features ten parent/child pairings, with each pair working together as a team to further the child's career.
David Cassidy is David Cassidy's first U.S. album released in 14 years and was his only release on the now-defunct Enigma Records.
 The album was released in 1990 with the featured single, "Lyin' to Myself."
 "Lyin' to Myself" was the first top-30 hit for David Cassidy in eighteen years.
 The album reached 136 on the Billboard charts.
The Partridge Family's Greatest Hits album was issued by Arista in 1989.
 It was never released on vinyl, only on cassette and compact disc, and is the first Partridge Family album to ever be released on CD.
 It contains 16 songs, including the TV show's second theme song, "Come on Get Happy" which was never featured on a Partridge family album, and two songs by David Cassidy as a solo act: "Cherish" and "Could It Be Forever".
 It has liner notes by Danny Bonaduce and a Partridge Family trivia quiz.
 The cover has a picture of a period lunchbox with a cartoon picture of the family in red velvet suits.
Didn't You Used to Be... is the only album David Cassidy released on Scotti Brothers Records.
 The album was released in 1992.
 Originally titled, "Didn't You Used to be"?
, is David Cassidy's ninth studio album.
 The album features ten tracks which are all written or co-written by David Cassidy's wife, Sue Shifrin.
Old Trick New Dog is a 1998 album from David Cassidy on his own Slamajama Records label.
 In addition to new songs, it also features several remakes of songs from "The Partridge Family".
 The single lifted from the album - "No Bridge I Wouldn't Cross" - was an Adult Contemporary Top 25 hit in the USA.
 The track - "You Were The One" - was co-written by David Cassidy and Tony Romeo who wrote many of the most popular songs for Cassidy and The Partridge Family in the 1970s, including I Think I Love You, "Summer Days", "I Am A Clown" and "Sing Me".
Breaking Bonaduce is an American reality television series that aired on VH1, focusing on former child-actor Danny Bonaduce, and how his (then-) increasingly unstable lifestyle impacted his then-wife, Gretchen, and their two children.
 The series premiered in September 2005 and ended in December 2006.
The Partridge Family is an American musical-sitcom starring Shirley Jones and featuring David Cassidy.
 Jones played a widowed mother, and Cassidy played the oldest of her five children who embarked on a music career.
 It ran from September 25, 1970, until March 23, 1974, on the ABC network as part of a Friday-night lineup, and had subsequent runs in syndication.
 The family was loosely based on the real-life musical family The Cowsills, a popular band in the late 1960s and early 1970s.
Danny (aka The Danny Bonaduce Show) is a short-lived syndicated talk show.
 Its only memorable episode was the first episode when he had his fellow cast members from "The Partridge Family", as his guests.
Getting It in the Street is the third and final release by David Cassidy on RCA Records and would also be the last album David Cassidy released in the United States until 1990 (with the release of "David Cassidy").
 "Gettin' it in the Street" was released in Germany and Japan in November 1976, but did not reach the album charts.
 The few copies that were pressed for the U.S. were released in July 1979.