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.
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?
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."
"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."
Kelly Rowland, Beyonce, LeToya Luckett and LaTavia Robertson at the Shine Auditorium in Los Angeles.
Beyonce rocked a camouflage dress at a live performance at HMV.
On stage at Party in the Park.
Destiny's Child hit the Grammy Awards in all white.
Destiny's Child wear matching yellow outfits.
Beyonce performed at the VH1 Vogue Fashion Awards.
Destiny's Child wear denim, crop tops and rhinestones.
The singer opted for sheer and sparkly at the Grammy Awards.
Doing her best Foxxy Cleopatra impression in a glittering gold dress.
Looking lovely in a full length floral dress at the VH1 Divas Duets.
She rocked the LBD for the Entertainment Industry Foundation Party.
Perhaps not her finest fashion moment. Beyonce at the NBC Today Show Summer concert series.
She dazzled the crowds at the 2003 MTV Video Music Awards.
She dressed down in UGGs to announce the pre-game activities for the Super Bowl.
Beyonce launching her Tommy Hilfiger fragrance.
Reunited with Michelle Williams and Kelly Rowland at the 2004 Jingle Bell Ball.
Beyonce got glammed up for the opening of Jay-Z's 40/40 Club in Atlantic City.
Beyonce backstage at the MTV's Total Request Live.
Who else could look this good in a nude mini dress? Another backstage pose after her appearance on MTV's TRL.
Beyonce rocked canary yellow at a chaity event.
Anothe glam look for the opening of Jay-Z's 40/40 Club, this time in Las Vegas.
One of the singers finest red carpet moments. She stepped out in an Armani gown at the Metropolitan Museum of Art Costume Institute Gala.
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.
Beyonce looked white hot at the launch of the Lorraine Schwartz's 2BHAPPY jewellery collection.
The singer announced her pregnancy at the 2011 MTV video Music Awards. She looked stunning in this asymmetrical Lanvin gown.
Beyonce at the launch of her Pulse fragrance.
Beyonce at the Pulse fragrance launch.
Pregnant Beyonce wore a black maxi when hosting the screening of Live at Roseland.
Beyonce attends the Costume Institute Benefit at The Metropolitan Museum of Art.
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