Now a four-piece following the departure of Hussey, in May 1985 the band released its second album "Youthquake" (US No. 31, UK No. 9), produced by the then-fledgling songwriting/production team of Mike Stock, Matt Aitken, and Pete Waterman known as Stock Aitken Waterman (SAW). The single "You Spin Me Round (Like a Record)" went to number one on the UK singles chart after having lingered outside the Top 40 for over two months (the song was SAW's first chart-topping single). The song also hit No. 11 in the US and No. 1 in Canada. Other album tracks released as singles included "Lover Come Back To Me", "In Too Deep", and "My Heart Goes Bang". They all reached the UK Top 30.