It was already a daring choice of dress for Britney Spears with its keyhole detail showing a distinct lack of bra.

But Britney Spears was clearly having trouble trying to keep her strapless black number from slipping down as she stepped out in Malibu on Monday.

The 42-year-old singer seemed to find her predicament quite amusing, and she was spotted laughing while trying to pull the dress up.

Peek-a-boo: Bra less Britney Spears sported a flowing black strapless dress with keyhole feature as she visited a friend in Malibu on Monday

Later, the singer was again spotted attempting to hoist the frock up as she left her car to head to Cafe Havana in the beachside enclave.

The star looked casual in the ‘mullet style’ number which featured a longer back and shorter front.

She teamed the dress with flip flops, sunglasses and an oversized bag and seemed in good spirits after leaving a friend’s house earlier.

Hoisting it up: Britney later headed out for lunch in Cafe Havana in Malibu, still tugging on her dress

Coffee run: The dress looked to be slipping dangerously low as Britney clutched her coffee

Slip slip slip away: Britney’s dress starts to fall down as she gets out of her sports car

Perhaps the star’s good mood is due to her new relationship with toyboy Dave Lucado.

The pair hit Las Vegas on Sunday where they were in the audience at the Cirque du Soleil One Drop show.

According to People, the couple also enjoyed dinner at Meatball Spot at Town Square on Saturday with Britney’s manager Larry Rudolph and several friends.

Summer is coming: Britney took advantage of the warm weather in the strapless frock, which she teamed with gold flip flops

Flashing the flesh: The dress was in a mullet style, revealing more of Britney’s legs at the front than the back

A witness told the website that the couple ‘seemed happy, sitting across from each other and chatting for most of the meal,’ a witness told People.

The group went on to see a Shania Twain show at Caesars Palace.

And it seems the relationship is going well, with Dave having already been introduced to Britney’s sons Jayden James and Sean Preston.

‘The boys think of David as a fun play pal,’ an insider told People. ‘It was a big step, she’s very excited.’

The X Factor: Britney has been relaxing and concentrating on her music career after announcing she would not be returning as a judge on the U.S. show