Conversation so far:
Why was there a new lineup for The Sweet?
The guitarist of The Sweet, Stevie Stewart, left.
What was The Sweet's first single?
The Sweet's debut single was Slow Motion.
Was Slow Motion by the Sweet well received?
The Sweet's debut single Slow Motion failed to chart.

Question: When did they go for a new record deal?
Self-contained rewrite: When did The Sweet go for a new record deal?