Jonathan Knight was/is the oldest member of the boy band New Kids on the Block. NKOTB hit the scene in the late 80's and was a very popular boy band.
Fuller House
Series • 2016
American Music Awards
Series • 1974
E! True Hollywood Story
Series • 1996
1½ Ritter - Auf der Suche nach der hinreißenden Herzelinde
Movie • 2008
New Kids On The Block Step by Step
Movie • 1990