When you're as loaded as Beyoncé and Jay-Z you'd think you could have anything you wanted in the world, right? Errrrm, not quite.

The music world's power couple might have topped Forbes' list of the highest paid celeb couples last year (they earned a whopping $78million in 2011 alone) but no amount of cash can buy them the right to own their baby girl's name - Baby Blue - it seems.

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BeyJay - who were snapped enjoying dinner together in New York this weekend - have lost their bid to trademark the name of their 10-month-old daughter.

The couple filed papers shortly after her birth in January to own and protect the rights to the name with a view to launching their own children's line of clothing in her name, according to MyFoxBoston.com.

But the request was rejected by a US judge because a Boston-based party planning firm, Blue Ivy Events, had already been operating under the name since 2009.

Can we suggest doing a quick Google search before naming baby number two?

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Meanwhile, Jay-Z has been getting parenting advice from none other than President Obama.

Speaking to US radio station Z1079, the US leader said: "I made sure that Jay-Z was helping Beyoncé out and not leaving it all with mum and the mother-in-law."

And he also revealed that he and his wife, Michelle, count Beyoncé and Jay-Z amongst their closest friends.

"I've gotten to know these guys over the first several years," he said. "They’re good people. They’re down to earth.

"Beyoncé could not be sweeter to Michelle and the girls. So they’re good friends. They really are down-to-earth folks. We talk about the same things I talk about with all my friends."

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  • 1998

    Kelly Rowland, Beyonce, LeToya Luckett and LaTavia Robertson at the Shine Auditorium in Los Angeles.

  • 1998

    Beyonce rocked a camouflage dress at a live performance at HMV.

  • 2000

    On stage at Party in the Park.

  • 2000

    Destiny's Child hit the Grammy Awards in all white.

  • 2000

    Destiny's Child wear matching yellow outfits.

  • 2000

    Beyonce performed at the VH1 Vogue Fashion Awards.

  • 2001

    Destiny's Child wear denim, crop tops and rhinestones.

  • 2001

    The singer opted for sheer and sparkly at the Grammy Awards.

  • 2002

    Doing her best Foxxy Cleopatra impression in a glittering gold dress.

  • 2003

    Looking lovely in a full length floral dress at the VH1 Divas Duets.

  • 2003

    She rocked the LBD for the Entertainment Industry Foundation Party.

  • 2003

    Perhaps not her finest fashion moment. Beyonce at the NBC Today Show Summer concert series.

  • 2003

    She dazzled the crowds at the 2003 MTV Video Music Awards.

  • 2004

    She dressed down in UGGs to announce the pre-game activities for the Super Bowl.

  • 2004

    Beyonce launching her Tommy Hilfiger fragrance.

  • 2004

    Reunited with Michelle Williams and Kelly Rowland at the 2004 Jingle Bell Ball.

  • 2005

    Beyonce got glammed up for the opening of Jay-Z's 40/40 Club in Atlantic City.

  • 2006

    Beyonce backstage at the MTV's Total Request Live.

  • 2006

    Who else could look this good in a nude mini dress? Another backstage pose after her appearance on MTV's TRL.

  • 2006

    Beyonce rocked canary yellow at a chaity event.

  • 2007

    Anothe glam look for the opening of Jay-Z's 40/40 Club, this time in Las Vegas.

  • 2008

    One of the singers finest red carpet moments. She stepped out in an Armani gown at the Metropolitan Museum of Art Costume Institute Gala.

  • 2009

    Beyonce topped the best dressed lists at the Golden Globe Awards in an Elie Daab gown teamed with a dazzling diamond necklace by Lorraine Schwartz.

  • 2010

    Beyonce looked white hot at the launch of the Lorraine Schwartz's 2BHAPPY jewellery collection.

  • 2011

    The singer announced her pregnancy at the 2011 MTV video Music Awards. She looked stunning in this asymmetrical Lanvin gown.

  • 2011

    Beyonce at the launch of her Pulse fragrance.

  • 2011

    Beyonce at the Pulse fragrance launch.

  • 2011

    Pregnant Beyonce wore a black maxi when hosting the screening of Live at Roseland.

  • 2012

    Beyonce attends the Costume Institute Benefit at The Metropolitan Museum of Art.

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