The movie mogul was sentenced to 16 years in prison last month after a trial in Los Angeles

The singer-songwriter said Crosby had been ‘a very supportive friend’ and a ‘catalyst of many things’.

Hollywood stars including Brendan Fraser, Michelle Yeoh and Cate Blanchett all appeared at the event, which took place at the Four Seasons hotel.

Authorities previously said the crash was being investigated as a felony driving-under-the-influence (DUI) incident.

The US actress suffered a “severe anoxic brain injury” due to the incident which took place last Friday.

The US actress remains in a coma in critical condition due to the incident.