Dressed in a blush pink two piece suit that women half her age might balk at with little to preserve her modesty underneath, the 56-year-old singer added buckets of bling to her red carpet look.
The crystal and rhinestone jewelled panels on her cuffs and lapels only cemented her look as a top disco diva.
Disco queen: La Toya Jackson, 56, wowed the crowds at the West Coast premiere of Donny and Marie Osmond's new theatre show
With tousled waves and bright cherry red lipstick, La Toya also accessorised with a glistening clutch, shimmering broach and chandelier earrings.
She joined a host of stars who turned out to support Donny and Marie Osmond's new theatre show entitled Donny and Marie - Christmas in Los Angeles.
The pair are reunited on stage with a sprinkling of festive cheer, as they share with fans their favourite songs from the Christmas period.
Daring: LaToya stole the show with her daring choice of ensemble
Just like old times: Donny and his sister Marie pictured at the launch of their new theatre show, Donny and Marie - Christmas in Los Angeles
Laid back: Former model and actress Elaine Hendrix and Glee star Josh Sussman both opted for a casual look for the theatre show launch
Greeting fans: Marie Osmond greets fans at the launch of her new theatre show starring alongside her brother DonnyAnd with 17 nights at the theatre ahead of them, the siblings looked pleased as punch to have many of their singing friends turn up to give them support.
Josh Sussman, who plays Jacob in hit show Glee took time to pose for pictures on the red carpet, as did Parent Trap actress Elaine Hendrix.