Especially when it's earmarked for the birth of their first child.
That's what Mom and Dad reportedly shelled out to rent the entire fourth floor of New York's Lenox Hill Hospital to make last night's debut of Blue Ivy Carter (or Ivy Blue Carter, as some reports say) a very private, high-security affair.
The 30-year-old pop star mom checked into the Upper East Side hospital under the alias Ingrid Jackson on Friday night, according to the New York Daily News. Doctors and nurses were barred from the heavily guarded fourth floor after 11 p.m. Saturday night, irking one physician who complained he had to see patients.
Hospital workers taped over security camera lenses while hospital staff were ordered to turn in cell phones upon arrival for shifts in an effort to keep images from leaking to the public, a source told the Daily News.
In addition, several security guards were spotted patrolling the perimeter of the hospital Saturday night. (Of course that didn't deter friends and family of Beyonce and Jay-Z—the rapper, producer, entrepreneur otherwise known as Shawn Carter—from toting in takeout and a dozen bottles of red wine, reports said.)
While the couple hasn't yet confirmed the birth of their baby girl (which was reportedly by c-section), fellow celebs did as much via Twitter.
Music mogul Russell Simmons confirmed the new arrival, tweeting “congrats to my good friends Beyonce and Jay-Z.”
Gwyneth Paltrow, a good friend of the couple, tweeted, "Welcome to the world Blue! We love you already."
Rihanna added her congratulations, tweeting "Welcome to the world princess Carter! Love Aunty Rih."
(h/t: New York Daily News)