L'Wren Scott, a fashion designer and celebrity stylist who was Mick Jagger's girlfriend, has been found dead in Manhattan.
A law official said Scott's assistant found her on Monday morning (local time). The official said there was no sign of foul play.
A spokeswoman for Mick Jagger said the singer was "completely shocked and devastated by the news."
Jagger is in Australia, on tour with the Rolling Stones. The veteran rockers were due to play in New Zealand on April 5.
The Utah-born Scott had her own fashion label popular with celebrities. She was a fixture on Jagger's arm and, at around 190cm, towered over her famous boyfriend.
She founded her high-end label in 2006 and recently created a more affordable line of clothes with Banana Republic.
On the red carpet, she has dressed stars like Nicole Kidman, Oprah Winfrey, Sarah Jessica Parker and Angelina Jolie.
Just last month she cancelled her London Fashion Week show, due to reported production delays.
Tributes poured in on Twitter:
Shocked and saddened by the passing of @lwrenscott ... she was an amazing soul, talented artist and an unbelievably giving friend. RIP.
— oliviamunn (@oliviamunn) March 17, 2014
Rest in Peace, beautiful L'Wren Scott.
— Alyssa Milano (@Alyssa_Milano) March 17, 2014
Heartbroken to learn of the loss of the lovely and talented L'Wren Scott. My thoughts and prayers are with her family. May she rest in peace
— Bianca Jagger (@BiancaJagger) March 17, 2014
Rest in peace, L'Wren Scott. You'll forever be missed.
— Marc Jacobs Intl (@MarcJacobsIntl) March 17, 2014
L'wren Scott was brilliant, elegant, kind, and generous. Shit. My heart goes out to her loved ones. What a tragedy.
— olivia wilde (@oliviawilde) March 17, 2014
Where to get help:
Lifeline: 0800 543 354 - Provides 24 hour telephone counselling
Youthline: 0800 376 633 or free text 234 - Provides 24 hour telephone and text counselling services for young people
Samaritans: 0800 726 666 - Provides 24 hour telephone counselling.
Tautoko: 0508 828 865 - provides support, information and resources to people at risk of suicide, and their family, whānau and friends.
Whatsup: 0800 942 8787 (noon to midnight)
Kidsline: 0800 543 754 (4pm - 6pm weekdays)
If it is an emergency or you feel you or someone you know is at risk, please call 111
For information about suicide prevention, see http://www.spinz.org.nz