Sideshow: Gun patrons: Deport him!

A petition calling on the government to deport

Piers Morgan

for voicing antigun views had amassed more than 47,000 signatures Monday, three days after it was posted on the White House's petition website by Infowars.com.

Morgan has called for stricter gun-control laws in the wake of the massacre in Newtown, Conn., and called a gun advocate who appeared on his CNN show an "unbelievably stupid man."

The petition demands that Morgan, a foreign national, "be deported immediately for his effort to undermine the Bill of Rights" and for using his TV show "to stage attacks against the rights of American citizens." Morgan sticks to his guns, as it were. "Bring it on, you goon," he tweets.

"Americans murdered with assault weapons in movie theaters, temples, schools, shopping malls," he said Monday, "where does it end?"

Veteran New York film auteur

Spike Lee

plans to boycott

Quentin Tarantino

's violent pic

Django Unchained

, which opens Tuesday. "It's disrespectful to my ancestors," Lee tells Vibe. "I'm not speaking on behalf of anybody else." The film stars

Jamie Foxx

as a slave on a bloody hunt for vengeance against slave owners. "American Slavery Was Not A

Sergio Leone

Spaghetti Western," Lee tweets. "It Was A Holocaust. My Ancestors Are Slaves. Stolen From Africa. I Will Honor Them."

Weeks after breaking up with on-off gf

Selena Gomez

, Canadian teen

Justin Bieber

has been seen lavishing extravagant PDA on his beautiful new lover . . .

Selena Gomez

. The pair were spied kissing at a

Salt Lake City airport. "They were very affectionate with each other," Anonymous Source tells RadarOnline.com. "They were kissing on and off, and they just sat together and talked and looked totally in love."

The duo were reportedly on a skiing trip with another young couple: Taylor Swift, 23, and her latest conquest, One Direction sensation Harry Styles, 18.

In a shocking report, the New York Daily Mews reveals that Bieb, now of legal age, has been misbehaving most childishly. "Justin doesn't seem to care and does whatever he wants," says

A Source

, suggesting Bieber may think of himself as an autonomous free agent. That said, maybe he ought not be allowed so much self-governance. "He smokes weed all day,"

A Second Source

tells the News, "from the time he gets up, and orders everybody around. . . . There's no supervision." Record company suits are worried also that Justin is expending too much emotional capital on his roller-coaster-of-a-thing with that Gomez girl.

Rihanna

, 24, honored her native Barbados, donating $1.75 million to the Queen Elizabeth Hospital in Bridgetown for equipment to be used at the Clara Braithwaite Centre for Oncology and Nuclear Medicine. The center is named after R's gran,

Clara "Dolly" Braithwaite

, who died in June of cancer. "I believe that this will have a huge impact on the people of Barbados," the Barbados Advocate quotes R as saying.

R's holiday in Barbados was almost ruined Sunday when a merman of German nationality emerged from the sea in front of her oceanfront pad and almost accosted her. Security got him.

In a special report excerpted by People mag, Life.com has revealed the secret

Frank Capra

used to make snow fall on the four-acre RKO set in Encino, Calif., where he was shooting holiday classic

It's a Wonderful Life

in June and July '46 during a heat wave. Capra, an engineering whiz at Cal Tech before his film days, mixed foamite (the stuff you find in fire extinguishers) with sugar and water and, some say, soap flakes. The mixture didn't just fall pretty and fluffy through the air. It perfectly mimicked that lovely crunch snow makes underfoot.

Jersey Shore

's

Vinny Guadagnino

is getting there. The New York Daily News says he'll be paid $10,000 to host a New Year's party at AMC34 Theater in New York. . . .

Doctor Who

fans looking for diversion Tuesday: Syfy will air from 10 a.m. to 11 p.m. a marathon session of

Doctor Who

spin-off show

K9

. . .

Madonna

's

MDNA

tour, which has made the rounds of the universe for nearly seven months, is over. It's the highest-grossing tour of 2012, making $228.4 mil over the course

of 72 shows, says Billboard mag. Bruce Springsteen and the E Street Band are in second place, making $199.4 million, also from 72 shows. Roger Waters is at No. 3, with $186.5 mil.

Happy Xmas, honey, here's a divorce!

So Ashton Kutcher brightened Demi Moore's holidays by filing divorce papers in Los Angeles County Superior Court. The couple separated in September '11 after six years. The Two and a Half Men star cites "irreconcilable differences" and seeks no spousal support. Multiple reports indicate that Demi, 50, who has more money than Ash, wants to punish him by seeking a high $ettlement. (She got $80 mil in her divorce from Bruce Willis.) Demi's post-Dashton love life has been sparse. She dated a boy, Vito Schnabel, 26, for a bit, and she was seen earlier this month giving lap dances to Lenny Kravitz at a Miami party.

Neither party has released a comment.

Ashton Kutcher

(see above) has embarked on a dating project so stressful, it turns most single men to mush: taking a new gf to your parents' place for a holiday sleepover. Yep, Ash and

Mila Kunis

, 29, will spend quality time with his parents in Cedar Rapids, Iowa.

Anonymous Source

tells the New York Daily News that Ash and his longtime friend and

That 70s Show

costar-turned-soulmate are getting "very, very serious."

Prince William and his expecting missus, Katie-luv Duchess of Cambridge, are bucking tradition by spending Christmas Day not with his people, even though they (symbolically) own the nation, but chez Kate's middle-class parents at her hometown of Bucklebury, the palace has announced.

Newlyweds Justin Timberlake and Jessica Biel, who tied the knot in October, have gathered their respective parents at the Biels' home in Boulder, Colo., for a joint family holiday get-together.