Sideshow: Good morning, Robin!

"I'm coming home,"

Robin Roberts

joyously declared Monday in a videocast appearance on

Good Morning America

beamed from her home as a rousing rendition of "Ain't No Mountain High Enough" played in the background. By home, she meant

GMA

, which has flown without her since she underwent a marrow transplant 20 weeks ago. Roberts, 52, who has the blood disease myelodysplastic syndrome, said her latest tests were so positive, she'll be back "in weeks, not months."

Roberts was excited to be back on air. "I haven't been live on television since the end of August," she said. "My heart is beating so fast right now. But that means I'm alive. I'm alive!"

Next week, she plans to take a dry run at doing the show: come to the studio, prepare, but stay off air just to see how her body reacts.

"We're going to take it step by step," she said.

Julianne Hough on Sunday unveiled the next frontier in red-carpet fashions: bugs. The Footloose and Rock of Ages singer-actor-dancer topped off her regal, gold-speckled Monique Lhuillier gown with jewelry made of dead bugs.

"We created this with Daniela Villegas," Hough told E! News of her red earrings. The right one was paired with a sparkly silverish ear cuff. "It's an actual pair of beetles and actual stick bugs," Hough said. Guess you could call it eco-fashion.

Useful too, if you're feeling peckish.

St. James's Palace has denied reports that Prince William and Catherine, Duchess of Cambridge, are expecting twins. The palace did confirm the royal couple will welcome the bairn in July.

In other affairs royal, the first official portrait of Her Middletonness' Royal Duchessness was unveiled Friday at the National Portrait Gallery in London. Kate called it "absolutely brilliant," according to the Prince of Wales website (www.princeofwales.gov.uk).

Scottish artist Paul Emsley's rather dark painting shows Kate in a dark blue-green dress. She's smiling a faint, if reserved smile. (Mona Lisa with a lemon peel in her mouth.)

"The duchess explained that she would like to be portrayed naturally, her natural self, as opposed to her official self," Emsley told the website. "She struck me as an enormously open and generous and a very warm person."

Some critics were displeased.

"He made her look older than she is and her eyes don't sparkle in the way that they do and there's something rather dour about the face," the Sunday Times (of London) art critic Waldemar Januszczak told BBC News.

Ann Romney, wife of GOP presidential candidate of old Mitt Romney, won't be strutting her stuff on your TVs after all. TMZ says Mrs. Romney, who has described herself as a "huge fan" of Dancing With the Stars, has turned down an offer to join the ABC contest show. . . . Wrestling Jedi Hulk Hogan (Terry Bollea) has filed a $50 mil lawsuit against Tampa-based Laser Spine Institute, saying the company ruined his career by subjecting him to unnecessary surgery. The Tampa Bay Times says the suit also claims the business used an endorsement from Hogan without his permission. The company has declined comment. . . . Vindication for folks who said Ricky Gervais dragged the Golden Globes down. NBC's telecast of Sunday's Tina Fey and Amy Poehler-hosted show drew 19.7 mil viewers, 2.8 mil more than last year. It was the top-rated Globes telecast in six years.

Reports indicate that celebrities flocked to several parties after the Golden Globes Sunday.

Some had a good time, it's believed.

Bill Murray was a force of nature at the Weinstein Co. after-party. "He single-handedly started a dance circle," says the New York Times, "briefly pulling in Kristen Wiig and then, when she left, other women who were in arm's reach." Quentin Tarantino also jazzed up the party, holding "court at a corner couch with a young, tall blonde lady friend, wrapping his arms around her and dancing," Entertainment Weekly site EW.com says. Selena Gomez was there, sans Justin Bieber.

HBO's party was real classy, EW says. It was populated by Jon Hamm and his gal, Jennifer Westfeldt, Steve Buscemi, and Robert Pattinson. There was mirth. And more dancing, with Julianne Moore taking Game Change castmate Sarah Paulson to the dance floor for a "shimmy," EW says.

Less fun was had by some celebs.

Hollyscoop.com says Jennifer Lopez and her teenage bf Casper Smart had an awkward run-in with J.Lo's ex-hunk, Sean "Diddy" Combs. "It is the first time J.Lo has seen him in years and everyone was watching when they went up to say hello to Diddy," Anonymous Source says. Isn't that exciting?

They were cordial "but J.Lo did not hug Diddy," says the source.