Here's what's being talked about in pop culture today:
• Kim Kardashian gave birth to the daughter she and Kanye West created. Also created this weekend: A gazillion variations of this joke on Twitter: "Imma let you finish, but Beyonce had the best baby birth ever!" [USA Today]
• "Man of Steel" scored $125.1 million over the weekend (including Thursday night previews), even though comic-book purists are ticked off about the ending (read this only if you've already seen the movie). [Box Office Mojo, Entertainment Weekly]
• Bernie Sahlins, co-founder of Chicago's Second City – the comedy theater group that served as the incubator for such legends as Bill Murray, John Belushi, John Candy, Gilda Radner and Dan Aykroyd – has died at the age of 90. [Chicago Tribune]