as already briefly mentioned above;

Cilla's TV duet with Marc Bolan is a very special performance,
which should have been extended and consolidated with proper studio recordings.

In the same way Bowie rescued and resurrected Lulu,
Bolan could have given Cilla an opportunity to reveal her hidden talents
for 'Rock' music in the 1970s...???

Sadly we'll never know - all we have that one low fi bootleg TV recording.