Gwen Stefani and Blake Shelton cuddle backstage after she performs at One Love Malibu fundraiser

Gwen Stefani and Blake Shelton showed their support at the One Love Malibu event, which went to benefit the Woolsey Fire victims.

Stefani, 49, was also one of the performers at the event along with Katy Perry, Robin Thicke, Natasha Bedingfield and more.

Stefani was wearing a vintage Beach Boys Endless Summer t-shirt, tucked into blue jeans, which were tucked into white floral print boots.

She was also wearing a studded light blue denim jacket with several metal studs embedded into it. 

Shelton, 42, was wearing a blue and white trucker's hat, with a dark blue shirt, light blue jeans, brown cowboy boots and a thick camo jacket, while holding a beverage.

The event was held at the King Gillette Ranch in Calabasas, California, with the rest of the line-up including Coldplay's Chris Martin, Macy Gray, Rita Wilson and more.

There was also a live auction at the event, with proceeds going to Woolsey Fire victims as well.

The Woolsey Fire ignited in early November, burning over 96,000 acres of land, forcing the evacuation of more than 295,000 residents and even caused three deaths.

Both Shelton and Stefani were coming off long-term relationships when they both started dating in November 2015.

Stefani was married to Bush lead singer Gavin Rossdale from 2002 to 2015, when Stefani filed for divorce for 'irreconcilable differences.'

Shelton was married to fellow country music star Miranda Lambert from May 2011 to July 2015, just months before starting to date Shelton.

Stefani has three sons with Rossdale, Kingston, 12, Zuma, 10 and Apollo.

They both met on the hit NBC reality competition series The Voice, where they both serve as judges.

Stefani and Rossdale weren't the only celebs spotted at the One Love Malibu event, with Demi Moore, Courteney Cox, Whitney Cummings, April Love Geary also spotted along with the performers.