Joan Collins is among a number of celebrities to mourn the passing of British singer and TV star Cilla Black. Black reportedly died in Spain at the age of 72.

Cilla Black’s agent confirmed her death.

“It is with deep sorrow that I confirm…the passing of singer and TV personality Cilla Black,” Nick Fiveash said in a statement to the media.

On Sunday Joan Collins led the expressions of shock and grief over Black’s passing via Twitter.

I am so sad and shocked by news about my good friend Cilla. She was a resplendent and rare talent. RIP #cillablack http://t.co/wsK6RtIszI

— Joan Collins (@Joancollinsdbe) August 2, 2015

Joan Collins sent a second Tweet about Cilla Black, and also shared an Instagram post.

Happier times: #cillablack with @onebiggins at his birthday party. RIP my friend https://t.co/84rzUAIo5K

— Joan Collins (@Joancollinsdbe) August 2, 2015

“Happier times: #cillablack with @onebiggins at his birthday party. RIP my friend,” Joan Collins captioned the following shot of her with the late Cilla Black.

A photo posted by Joan Collins (@joancollinsdbe) on Aug 2, 2015 at 8:01am PDT

Piers Morgan also shared his grief over Cilla Black’s passing.

RIP Cilla Black. Very very sad news.

— Piers Morgan (@piersmorgan) August 2, 2015

Loved interviewing Cilla for Life Stories. Great life, great talent, great star. Now reunited with her Bobby. pic.twitter.com/cZSGhtj4CY

— Piers Morgan (@piersmorgan) August 2, 2015

She was a star for my entire life, and a trailblazer for so many women in show business. https://t.co/iRp7BlTWMo

— Piers Morgan (@piersmorgan) August 2, 2015

Joan Collins and Piers Morgan are joined via social media by a wealth of celebrities and fans who knew and loved Cilla Morgan. All are sharing their shock at her sudden passing.

No word has yet been released as to her cause of death.