//]]>. Build Me Up Buttercup was the #18 song in 1969 in the Rock & Roll charts.The song was performed by The Foundations.Comment below with facts and trivia about the song and we may include it in our song facts! Build Me Up Buttercup recorded by ScottReiburn on Smule. They have two children. Why do you build me up Buttercup, baby Just let me down and mess me around And then worst of all: you never call, baby When you say you will But I love you still I need you more than anyone, darling You know that I have from the start So build me up, buttercup, Don't break my heart. //