The black leather jacket and skin-tight trousers that Olivia Newton-John wore for the finale of Grease have fetched $405,700 (£314,000) at auction - more than double the expected bid.

Axar.az reports citing BBC.

The actress' original script from the film was also among the items at the sale in Beverly Hills, California, which in total raised $2.4m.

Some of the proceeds will go towards Newton John's cancer treatment centre in Australia.

The buyers' identities are not public.

Grease was released in 1978 and Olivia Newton-John played demure Sandy alongside John Travolta as bad boy Danny.

The infamous black outfit marked Sandy's transition from a good girl high-schooler to a sexy, leather-clad biker chick, when the couple sang You're the One That I Want in a fairground.