Conversation so far:
What is the current line up with the Brotherhood of Man?
In 1972 he got together a trio of session singers, Martin Lee, Nicky Stevens and Lee Sheriden.
How long did this current line up last?
CANNOTANSWER.
What did the trio of session singers do?
The trio began recording together, but their first single, "Rock Me Baby", to be released at the end of 1972.
Did their first single hit the charts?
was cancelled due to the release of the song by David Cassidy.

Question: What happened after the release of the song by David Cassidy?
Self-contained rewrite: What happened ot Brotherhood of Man after the release of the song by David Cassidy?