L'Wren Scott was under ''tremendous'' pressure because of her career.

The designer was tragically found hanged in an apparent suicide at her New York apartment yesterday (17.03.14) and her longtime friend, fashion editor Andre Leon Talley, worries the talented star might have been stressed about adhering to the rigorous Fashion Week schedule.

The grieving star said in an interview with ET: ''I think the pressure must have been tremendous for L'Wren to continue to compete as she was on the top...to be on this calendar twice a year in New York or London or Paris is extreme pressure for anyone.

''Yet, she rose to the occasion. She was a small designer with a huge international following. She was almost like a great cult. She was like a rock star herself.''

The Vogue contributing editor and Zappos artistic director insists L'Wren's 13-year relationship with Sir Mick Jagger was the centre of her world and says the Rolling Stones frontman was nothing but supportive of her career.

Andre explained: ''You would go to L'Wren Scott's shows and Mick always was there taking pictures, and Mick was very, very verbally supportive of her...L'Wren spoke to me about how much she loved the family side of her life with Mick and his children.

''She loved going away with them, and I think she loved the balance that it gave her in this very tough and ruthless, heavily pressurized world of fashion.''

The fashion guru claims he never suspected the model-turned-designer had been struggling with depression.

He added: ''I never thought for one second or ever heard that L'Wren was suffering from depression or tried to harm herself or take her life, ever.''

It has been alleged that L'Wren was almost $6 million in debt when she died and had reportedly been ''acting strangely'' and not answering phone calls in recent weeks.