Joan Rivers says that she would like a "77th facelift" for her 77th birthday. The brash comedian stars in a new documentary about her career in comedy. Seth Keal/IFC Films hide caption

itoggle caption Seth Keal/IFC Films

Sarah Silverman won an Emmy in 2008 for her video I'm F******* Matt Damon, which appeared on the Jimmy Kimmel Live show. Steve Agee hide caption

itoggle caption Steve Agee

George Guarch greets children at the Miami airport in the early 1960s. His daughter, Lynn, says George would carry the youngest children off the planes. Lynn Guarch Pardo hide caption

itoggle caption Lynn Guarch Pardo

When James Murphy was 22, he was offered a writing job on the sitcom Seinfeld but turned it down to focus on his musical career. Ruvan Wijesooriya hide caption

itoggle caption Ruvan Wijesooriya

Jay-Z tells Terry Gross one of his earliest rhymes, which he wrote when he was just 9: 'I'm the king of hip-hop / Renewed like the Reebok / The key in the lock / Words so provocative/ As long as I live." The hip-hop artist says that when he looks back on that rhyme now, he thinks, "Wow, that was pretty prophetic." Jay Mohegan via Random House hide caption

itoggle caption Jay Mohegan via Random House

Sondheim, shown here in 1974, won the Pulitzer Prize in Drama for Sunday in the Park with George. He has also received eight Tony Awards, eight Grammy awards and a Kennedy Center Honor. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images

A New York Times/CBS News poll found that 30 percent of people under 45 said the use of devices like smart phones and personal computers has made it harder to concentrate. iStockphoto.com hide caption

itoggle caption iStockphoto.com

In July 2009, Time magazine held an online poll asking who America's most trusted newscaster was; Jon Stewart won with 44 percent of the vote. Comedy Central hide caption

itoggle caption Comedy Central

Comedian Aziz Ansari won the Jury Award for "Best Standup" in 2006 at HBO's U.S. Comedy Arts Festival. Andrew H. Walker/Getty hide caption

itoggle caption Andrew H. Walker/Getty

Futurama's clueless starship commander Zapp Brannigan is just one of the many cartoon characters voiced by Billy West over the years. Matt Groening/Twentieth Century Fox hide caption

itoggle caption Matt Groening/Twentieth Century Fox

Keith Richards is ranked 10th on  Rolling Stone's list of the 100 greatest guitarists of all time. Deborah Feingold hide caption

itoggle caption Deborah Feingold