Early career highlights included "This Town Ain't Big Enough for Both of Us", which reached No. 2 on the UK Singles Chart in 1974; the disco hit "The Number One Song in Heaven" in 1979, resulting from a collaboration with Giorgio Moroder and marking a stylistic shift towards new wave/synth-pop; "When I'm With You", which topped the Australian and French Singles Charts in 1980; the single "I Predict", which provided Sparks' first appearance on the "Billboard" Hot 100, reaching No. 60 in May 1982; the 1983 single "Cool Places" with the Go-Go's rhythm guitarist and co vocalist Jane Wiedlin, and "When Do I Get to Sing 'My Way', which was the top airplay record in Germany for 1994.