Jennifer Garner and on-screen romance Ashton Kutcher kiss each other on the lips at the canals in Venice, Los Angeles on the set of their new romantic comedy Valentine’s Day on Friday.

Earlier today, Ashton tweeted a few goodbye words for DJ AM, who unexpectedly passed away. He wrote, “Much love to my boy AM. Love you brother. love you brother RT @dj_am ‘New york, new york. Big city of dreams, but everything in new york aint always what it seems.’”

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Ashton Kutcher, who’s created The CW show “Beautiful Life,” offered an update on the health of Mischa Barton. Mischa was to play a character on the show.

“I can tell you right now Mischa Barton is doing great,” Kutcher said at the Fortune Brainstorm: Tech Summit in Pasadena, California on Friday.

Barton was hospitalized earlier this month after police were called out to her Hollywood Hills home to assist in a medical issue.

Kutcher said the actress is now on her way to shoot a TV show in New York. “Beautiful Life” is scheduled to premiere on September 16 on The CW.

Hollywood A-listers spend the evening with President Barack Obama at one of Washington’s biggest — and funniest — nights!

In keeping with tradition, President Obama poked fun at himself at the annual White House Correspondents’ Association dinner Saturday night, in front of an audience of top celebs including Steven Spielberg, George Lucas, Demi Moore, Ashton Kutcher, Samuel L. Jackson, Sting and more.

Obama referenced the flood of media coverage on his first 100 days in office and had a prediction for his next milestone. “I believe my next hundred days will be so successful that I will be able to complete them in 72 days,” the Associated Press quoted him as saying, to huge laughs. “And on my 73rd day, I will rest.”

First Lady Michelle Obama also attended the dinner, wearing an elegant pink dress designed by Michael Kors. Comic actress Wanda Sykes, the dinner’s entertainer, teased the First Lady for her meeting with
the queen in which she patted Queen Elizabeth II on the back “like she just slid into home plate — way to go, queen!”

Oprah Winfrey sent her first “tweet” during a taping of her television talk show.

The audience cheered as Winfrey typed “ASHTON IS NEXT” on a laptop Friday morning and sent the message on the social networking site Twitter.

Winfrey was welcomed onto the site with messages from George Stephanopoulos, Ellen DeGeneres, Jimmy Fallon and Shaquille O’Neal. She noted that Ashton Kutcher had 1 million “followers” on the site, surpassing CNN, and spoke with the actor over Skype, an Internet communications service.

According to Twitter, Winfrey already has 75,000 followers, which are people who have requested to see her tweets.

Later in the show, she added tweets of thanks for the welcome and updates about her dog getting its rabies vaccine.

The race for 1 million followers on Twitter is on. In one corner is CNN; in the other, Ashton Kutcher.

Just a few weeks ago, no one was close to reaching that benchmark. Now, as users have flocked to the increasingly popular microblogging site, the numbers have grown.

CNN’s breaking news feed (http://www.twitter.com/cnnbrk) is in the lead with more than 937,000 followers as of noon Wednesday. Britney Spears is second, with more than 903,000 followers, while Kutcher (http://www.twitter.com/aplusk) has seen his follower count grow to more than 888,000.

The 31-year-old actor recently threw down the gauntlet, challenging CNN and its founder, Ted Turner. In a Web video posted earlier this week, Kutcher said he would ding-dong-ditch Turner’s house if he beat CNN to 1 million.

“I find it astonishing that one person can actually have as big of a voice online as what an entire media company can on Twitter,” Kutcher said in a video he posted on qik.com. “I just thought that was kind of an amazing comment on the state of our media.”