Singing labradoodle Justin Timberlake has reportedly (but not confirmedly) proposed to on-and-off girlfriend Jessica Biel, who reportedly said "yes."

On tonight's Extra, Rebecca Black talked to Mario Lopez about the death threats that have been made against her because of her annoyingly popular song, "Friday." Black said she just was surprised that some people were taking it so seriously: "Yeah, um, I think that's kind of weird. Like, why would you, it's a song! Like, it's not like I ran for President and then I said something really bad."

Today on Wendy Williams, Mario Lopez stopped by to prepare a healthy/romantic dessert from his new book "Extra Lean". He does a poor job explaining the recipe, leaving you to wonder if he knows anything at all about cooking.

Police were called to Mullets Sports Bar outside of Chicago after a man pulled a framed photo of Saved by the Bell character A.C. Slater from the wall and smashed it on the ground. What was his rationale?

Neil Patrick Harris is having twins. Lindsay Lohan is mentoring young girls. Katy Perry crashes a prom. Maybe we're going to see angry Mel Gibson text messages. Famous matchmaker's engagement goes sour. Sunday's Gossip Round Up, coming up!

The Rachael Ray show hosted Mario Lopez to promote his new book, "Extra Lean." His third fitness rule, portion control, went along with an entertaining story...the "It's a Small World" ride at Disney struggling to hold oversized visitors.

Jesse James was flirting with girls electronically behind Sandra's back, of course. Mario Lopez is obsessed with his body. Paris Hilton and her BF broke up while Brody Jenner and Avril Lavigne got together. Monday's gossip has separation anxiety.

Sarah Silverman unleashes the rage of a thousand indignant female fans on an ex-boyfriend. Brangelina sues News of the World for the break-up rumor. I hereby nominate Kevin Federline to date Kate Gosselin. Tuesday gossip just wants to be loved.

What else? Joe Francis might have had something to do with Tila Tequila/Casey Johnson. Angelie Jolie's latest production: Salt-y. Artie Lange has a gig, Lydia Hearst has a mans, Patti Smith's still punk. Presenting your Sunday Morning Gossip Roundup:

Mario Lopez, Jennifer Love Hewitt, and Fergie, Oh My! Can't you just feel the mortification oozing from your computer screen?

Sean Lennon turns 34 today. Sharon Osbourne is turning 57. Newly retired pro golfer Annika Sörenstam is 39. Former Senator Trent Lott is turning 68. Director Guillermo del Toro turns 45. Tony Shalhoub is 56. Jackson Browne is 61. John O'Hurley of Seinfeld and Dancing with the Stars is 55. Actor Brandon Routh is turning 30. C-SPAN founder Brian Lamb is 68. Singer-songwriter P.J. Harvey is 40. And Randy Spelling—son of Aaron and Candy and brother of Tori—turns 31 today. A few weekend birthdays are below.

There is a simple formula to determine how successful the stars of hit television shows go on to become: how long it takes before the reunion special. Seinfeld held out for 11 years, how long did everyone else last?

Hello, salacious political gossip cross-section: in an interview with AC SlaterExtra's Mario Lopez, Levi Johnston revealed that he was "half-Mexican." Really?

• Madonna fell off a horse while riding at photographer Steven Klein's house in Bridgehampton on Saturday. She wasn't seriously injured, but don't think for a minute she's taking any blame for the spill. Her flack blamed the accident on a rogue paparazzo who jumped out of the bushes and startled the horse, although both the photographer in question and the police don't share that account. [NYDN, NYP, E!]
• Uma Thurman and Arpad Busson were rumored to be getting hitched in the Bahamas on Saturday, although there's still no word on whether any ceremony actually took place. [People, UPI]
• Has Lindsay Lohan gone straight? She was spotted "flirting relentlessly" with a group of guys including Leonardo DiCaprio at a club last week. [Sun]
• Rumor has it Naomi Campbell is thinking of moving to Moscow so she can be closer to boyfriend Vladislav Doronin. Say it isn't so! [DS]

Harvey Weinstein leaving the Waverly Inn with Blake Lively and Penn Badgley ... Hugh Jackman buying art supplies at Blick on Bond Street ... Jennifer Aniston getting in an SUV ... Philip Seymour Hoffman smoking a cigarette in the Village ... Vanessa Williams filming scenes for Ugly Betty on the Lower East Side ... Diane Kruger walking downtown ... Mariska Hargitay standing on the Law & Order set ... U2's The Edge walking with his wife, Morleigh Steinberg ... Celine Dion getting in an SUV outside her hotel ... Mario Lopez grabbing a taxi in front of Rockefeller Center ... and Kirsten Dunst watching a Rangers game at Madison Square Garden.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] March 23 @ 2:45pm Just saw Mario Lopez walking with another guy getting filmed for something. Much shorter than I expected.

Celebrities have fallen on hard times! They can't subsidize their sad lives with appearance fees anymore. We just received a long list of pseudo-celebs looking for work. Let us share the names with you.

New Year's Eve—the most important drinking night of the year—is almost upon us! What kind of party are you going to? Only five types exist, which I will detail for you after the jump.

Tom Cruise continues to bring the weirdness on his Valkyrie press tour, so why should Extra's Mario Lopez be spared?

Hollywood PrivacyWatch: Holiday Travel Edition! 11/26 — Day before Thanksgiving, the hellmouth of the Southwest terminal at LAX — Starbucks and the CPK that gave me food poisoning that one time and some vendor that touts itself as "Organic." Picture this — MARIO LOPEZ. Alone, toting an overstuffed plastic bag and nondescript rolling luggage. He is... shiny, like his own wax sculpture came to life. Shock of all shocks, he's shorter in person and not nearly as buffed out as People Magazine would have you believe. But Mario travels in comfort, not style. Running suit. Velour. Midnight blue. Wow. [Hollywood PrivacyWatch is written by and for Defamer readers; send your sightings to tips@defamer.com.]