Simon Cowell arrived with his partner Lauren Silverman to oversee the single in aid of the victims of the Grenfell Tower tragedy.
Simon arrived at Sarm Studios, Notting Hill, on Monday to see the progress of the charity single Simon & Garfunkel's Bridge over Troubled Water.
Simon took his time as he spoke to press about the horrifying fire that broke out - leading him to round up the music industry's best for the charity endeavour
Also taking part will be young survivors of the Grenfell fire.
Surviving children from the Grenfell tower block
Robbie Williams spotted arriving at the studios this afternoon
The Grenfell artists single will be available to download on Wednesday at 8am
