That's certainly not maternity wear! Pregnant Beyoncé dons barely there swimsuit for her Party music video... but where's her baby bump?

By Laura Schreffler

Last updated at 8:22 PM on 27th October 2011

She might be expecting her first child but Beyoncé's style in her new video is anything but mumsy.

In fact, the singer has donned a series of barely-there ensembles, for her latest video.

Beyoncé invited J.Cole, who performs on the track, her Destiny's Child bandmate Kelly Rowland and her sister Solange to appear in the celebrations.

And just one week after debuting her boy-band tribute video for Love on Top, Beyoncé is back with the Party video but one very big thing is noticeably missing.

Where's the bump? Beyoncé gets racy in the video for her new single, Party

The 30-year-old starlet shows no signs of her pregnancy in the video for her J. Cole remix of Party, which debuted tonight on BET's 106 & Park.

In the video, which was shot in August, just before she announced her pregnancy at the MTV VMA's, the mother-to-be has a few cocktails, wears a skimpy, hot pink bathing suit and generally parties like a rock star.

Her outfits get racier and racier in each shot as she prances around playing party host in a slew of outfits ranging from a skimpy yellow tank top and underwear to a leopard print leotard to a crocheted bikini.
Her sister Solange, 25, plays DJ in the video, spinning sweet tunes presumbably sung by her famous older sibling.

Her former Destiny's child bandmate and current X-Factor UK judge Kelly Rowland also makes an appearance.

I heart summer: The 30-year-old diva appears in underwear, a yellow tank and brings back the bum bag

Chef B: Beyoncé fries you up a party surprise but her baby bump remains out for view in the video

J. Cole shows up midway through the song in his glittering car to rap on the track.

There is a rational explanation for the fact that Beyoncé is bumpless in Party.

Her fans learned there would be a clip back in August, when she was spotted shooting in New Jersey's Oakdale Mobile Home Park.

She has also shot various other videos from her album, 4, including: Love on Top, Countdown, 1+1, Run the World (Girls) and Best Thing I Never Had.

Blowing bubbles: The 30-year-old still has a childlike spirit

Errr....The Love on Top singer seems to be overly stimulated in this photo

Still, it isn't the image a woman embarking on motherhood is typically likely to present to the world, but then, nothing about Beyoncé's pregnancy has been typical.

She's become a fashionista for the mummy crowd, wearing skimpy skirts, plunging necklines and sky-high heels while carefully hiding her bump.

However, lately she's been keen to show off her bump after being at the centre of claims that she wore a fake bump for a television appearance, earlier this month.

Not so shy: The singer shows off her natural assets

Madonna, is that you? Jay-Z's wife sunbathes in a cone-like bikini top

Party people: Beyoncé is the perfect host, while her sister Solange spins some tunes

Her representatives quickly dismissed the reports as 'stupid, ridiculous and false' - but not before footage of her sporting an apparent 'squished' bump on Australian TV became a YouTube hit.

Viewers noted how at one point the cameras appeared to show Beyoncé's bump being squashed as she sits down.

During the interview to promote her new album, 4, she revealed she is due to give birth in February, adding that she feels 'grateful' and 'blessed' to be expecting her first child.

Lovely in leopard: The Love on Top singer goes over the top

Bling: The superstar is all about being solid gold

Bust a move: J. Cole makes his entrance

Her unborn baby's father is music mogul/rapper husband, Jay-Z.

The footage promoted speculation on gossip websites that she is wearing a prosthetic bump.

U.S. blog Media Takeout was the first to highlight the peculiar moment, citing it as 'evidence' she is exaggerating the look of her bump.

How to throw a party: Fur and cheese doodles work, apparently

Be-hive! Beyoncé looks like she's about to start misbehaving in this clip

Baby DJ: Solange Knowles steals the show as she DJ's for her big sister

Other news outlets also weighed in, with The Washington Post calling it 'weird' while ABC News asks: 'Is Beyoncé's bump as big as she’d have us believe?'

It even triggered wild 'conspiracy theories' that she was faking her pregnancy while a surrogate mother carries her baby.

However, the claim carries little logic considering she was photographed wearing a bikini on September 6 while holidaying in Croatia and sporting a visible bump.