Hailey Bieber brings Pebbles Flintstone back to life in a

Hailey Bieber brings Pebbles Flintstone back to life in a racy PVC costume while her shirtless husband revives Justin Bamm-Bamm at Vas J. Morgan’s Halloween party

Pebbles Flintstone stayed out well past her bedtime as she partied the night away with the heavily tattooed Bamm-Bamm in Los Angeles on Saturday night.

The cartoon characters were brought back to life by Hailey and Justin Bieber during an appearance at British bloggers Vas J. Morgan and Michael Braun’s annual Halloween party, where they were joined by a host of stars.

Hailey, 26, opted for a skin-tight PVC interpretation of Baby Pebbles’ wardrobe and drew attention to her slim body as she entered the exclusive West Hollywood event.

She completed the look with a striking red bob wig, while a diamond-encrusted necklace with the single letter B appeared to be her only notable accessory.

Joining his wife, Justin one-upped the exuberant Bamm-Bamm Rubble by choosing to go shirtless – a decision that revealed the numerous tattoos on his torso.

They look familiar: Pebbles Flintstone was out well past her bedtime as she partied the night away with the heavily tattooed Bamm-Bamm in Los Angeles on Saturday night

They look familiar: Pebbles Flintstone was out well past her bedtime as she partied the night away with the heavily tattooed Bamm-Bamm in Los Angeles on Saturday night

Looking good: The cartoon characters were brought back to life by Hailey and Justin Bieber during an appearance at Vas J. Morgan and Michael Braun's annual Halloween party

Looking good: The cartoon characters were brought back to life by Hailey and Justin Bieber during an appearance at Vas J. Morgan and Michael Braun’s annual Halloween party

The Flintstones theme was still evident, however, as the 29-year-old Canadian singer wore a hat and pants reminiscent of the wildly popular animated series.

The event capped off a weekend of Halloween parties for Justin, who performed at Cindy Crawford and Rande Gerber’s Casamigos party the night before.

On this occasion, Justin took an unorthodox approach by dressing up as a scuba mask, snorkel and fins with a pink Hawaiian shirt and shorts.

The couple, who married in 2018, are regularly criticized for looking completely different when they go to events.

Hailey recently opened up about why they often appear in different outfits, and she blamed it on the fact that they get ready at different times.

She told GQ Hype when the magazine noted that they often look like they’re from “two different planets” when they’re out: “It’s so funny because I see so many people talking about it.”

The model revealed how Justin usually gets ready first, which may partly explain why he is seen extremely casual at events compared to her glamorous look.

Hailey added, “He might want to wear baggy sweatpants to dinner, and I might want to wear a tiny dress just because that’s how I feel.”

Busy Man: The event capped off a weekend of Halloween parties for Justin, who performed at Cindy Crawford and Rande Gerber's Casamigos party the night before

Busy Man: The event capped off a weekend of Halloween parties for Justin, who performed at Cindy Crawford and Rande Gerber’s Casamigos party the night before

Hard to miss: On this occasion, Justin took an unorthodox approach by dressing as a scuba mask, snorkel and fins with a pink Hawaiian shirt and shorts

Hard to miss: On this occasion, Justin took an unorthodox approach by dressing as a scuba mask, snorkel and fins with a pink Hawaiian shirt and shorts

“We can’t sit there and say, ‘So I’m going to wear this and you’re going to wear that.'”

In addition to discussing her couple’s style, Hailey also spoke to the online magazine about the pregnancy rumors that have swirled around the couple over the past year.

She said, “I can’t even be bloated and still not be pregnant?”

Hailey added that it was “disheartening” to read people’s comments about her body.

Casamigos’ annual Halloween party was a star-studded event with a guest list that included Megan Fox, Machine Gun Kelly, Paris Hilton and Cindy Crawford.

Attendees wore a range of costumes, including iconic Britney Spears outfits and various Quentin Tarantino characters.