Gwen Stefani has learned a basic truth about being a parent: You always feel guilty. Especially if you are a woman juggling work and home.

"Getting to the studio and not being able to make it happen, but missing out on being at home, missing out on putting the kids down. What's more important? I felt so guilty," the No Doubt singer tells Vogue of raising her two sons with hub Gavin Rossdale, Kingston, 6, and Zuma, 4. Gwen, 43, says she kept thinking, "I am letting everyone down. . . . I'm letting down my kids; I'm letting down myself." Things were especially tough during the year Gavin toured with his reunited band, Bush. "Once you have a family, it's just so obvious how everyone needs each other," she says. "So it's really nice to have him back." Adds Gwen, "It's super fun being a mom, but it's not what you think it's going to be."

Jimmy Fallon to replace Jay Leno?

Jay Leno's contract as master and guardian of The Tonight Show comes up for review in 2014 and, according to the New York Daily News, it may not be renewed. Anonymous Sources say NBC is quietly pursuing Late Night host Jimmy Fallon to replace Leno, 62. NBC has yet to comment.

Bill Clinton: You talkin' to me?

Wild raging bulls are about to be unleashed on cable TV: Taxi Driver helmer Martin Scorsese, 70, has joined his considerable forces with the smooth, silky force that is Bill Clinton, 66, to film a documentary about America's 42d president for HBO. "A towering figure who remains a major voice in world issues, President Clinton continues to shape the political dialogue both here and around the world," Scorsese says in a statement. "Through intimate conversations, I hope to provide greater insight into this transcendent figure." Transcendent?

Gabourey Sidibe goes public TV

Gabourey Sidibe, 29, who landed an Oscar nomination for her acting debut in 2009's Precious, has signed a deal to host the fifth season of the PBS anthology show AfroPoP: The Ultimate Cultural Exchange. Premiering next month, the program will feature indie films about life and culture among peoples around the world who are of African origin, says USA Today.

Romeo, Romeo, thou art Burberry

David and Victoria Beckham's son Romeo, 10, has landed a job: He's one of the models featured in Burberry's spring/summer 2013 ad campaign. It's a good career choice for the pint-sized Romeo, who "loves fashion," according to mum Victoria. "He likes to go out in a suit with a bowler hat . . . he's a real fashion lover."

Lil Wayne, very big wallet    

Lil Wayne, 30, just dropped $7.72 mil in one go. Alas, he wasn't buying a used Lear Jet or 38,600 bottles of Louis Roederer Cristal Champagne Brut 2004.

He gave it all to the taxman. The "Got Money" rapper paid up his IRS tab in back taxes, releasing the liens the feds had on his Miami Beach home.

Hope he has some more cash socked away: Lil insists he'll retire at 35.

The beautifullest baby of all time

People mag's Sexiest Man Alive, Channing Tatum, 32, has made what will invariably turn out to be the world's cutest baby with his sexy-cute wife, Jenna Dewan-Tatum, 32, their reps tell People.

Hollywood reacts to shooting

Friday's mass murder in Newtown, Conn., has lead to some soul-searching in Hollywood about violence in the media. There have been a few cancellations. Monday's screening of Jack Reacher hosted by star Tom Cruise at Lincoln Center in New York has been postponed "out of respect for the families who lost loved ones in Newtown, CT." Cabler Discovery has canceled its popular reality show American Guns, about a family of gunmakers, after a flurry of protests.

Fox pulled Sunday's episodes of its sometimes controversial cartoons Family Guy and American Dad. The latter featured a demon who punished naughty children at Christmas.