<P> "Time to Change" is a bubblegum pop song recorded in 1972 by The Brady Bunch Kids, the children characters on 1970s television situation comedy The Brady Bunch . The song and another Brady Bunch Kids song, "We Can Make the World a Whole Lot Brighter", were featured in The Brady Bunch episode "Dough Re Mi", which aired on January 14, 1972 . </P> <P> Written by Raymond Bloodworth, Billy Meshel and Chris Welch, "Time to Change" features solos by Barry Williams and Maureen McCormick, who portrayed the Brady's eldest children Greg and Marcia, respectively, on the TV series . The songs featured in this episode marked the on - screen singing debut of Marcia and Bobby (Mike Lookinland). </P> <P> Within the context of the series, "Time to Change" was devised as a way to incorporate Peter Brady, whose voice was changing due to puberty and was unable to stay on key, into a family recording session; the second verse of the song explicitly refers to growing from a child into an adult . The televised version includes an off - key gag line from Peter in the chorus, which was not included on the commercially released single . </P> <P> "Time to Change" was released as The Brady Bunch's second single, with "We Can Make the World a Whole Lot Brighter" as the B - side . The song performed poorly on the pop charts, failing to reach the Billboard Hot 100 . </P>

When it's time to change the brady bunch