Hayden Christensen and his fiance Rachel Bilson are cooling things off ... at least for now, according to UsMagazine.com.

The two have been engaged since February 2009 but now, they're "taking a break."

Just last night, Bilson, 28, walked the red carpet of the Take No Prisoners event without her engagement ring.

According to the mag, when asked about her upcoming wedding plans, she replied while pointing to her bare hand, "No, no plans. No nothing."

A source also says that Christensen and Bilson are "taking a month off" and will decide after that whether their engagement will continue.

A Gossip Girl and her pretty pal!

Michelle Trachtenberg and Emmy Rossum, who were both wearing some fancy sandals from Girl Two Doors Down, stopped for some fro-yo in Beverly Hills before getting their nails done. Double the cuteness!

And this just in! The gorgeous Emmy (she's also BFFs with Michelle's GG co-star Leighton Meester) will next be seen in the upcoming Showtime series Shameless... and she'll be naked. Scandalous!

Is there anything these sisters haven't done?

Kim, Khloe and Kourtney have just released the name of their book (coming out this November by St. Martin's Press): Kardashian Konfidential. How klever! Kim has said the following about what to expect:

"It's going to have lots of fun tips and stories and everything about relationships; it's a little bit more of an in-depth look into our lives, even though people think that they've probably seen everything. We're just being super-candid and sharing lots of pictures and fun stuff."

Sounds like a best-seller to me!

Not that she really had anything to do with it, but still! What a sweet hubby Khloe Kardashian has... check out the newlyweds leaving Ago last night and see what Lamar Odom has to say about his reality star wife.

Everyone loves the Lakers!

Lindsay Lohan is no doubt a fan of Carvel Ice Cream ... even if her mom has had some recent drama with the ice cream brand. Check out the cake Linds ordered in honor of her favorite HBO series, True Blood!

Lilo and sister, Ali are also both owners of an exclusive Carvel black card ... given only to certain high profile celebrities who can bring significant publicity to the Carvel brand. Other celebs who carry the black plastic: Britney Spears, Jessica Simpson, Kendra Wilkinson, Paris Hilton and Sarah Jessica Parker, Howard Stern and Jerry Seinfield, just to name a few.

The black card also allows the cardholder to receive up to $25 worth of free ice cream a week for 75 years. But here's the catch ... the cardholder has to be present when getting the ice cream.

X17online has learned exclusively that Dina does NOT have her own black card, and she's been abusing one that belongs to Lindsay's sister, Ali. Our Carvel source tells us this is the reason Dina Lohan was denied her recent purchase at a Long Island Carvel store.

The West Los Angeles store has been one of Lindsay's favorites for years. Here she is walking out with a sweet treat back in April 2009. The store's owner tells us that Lindsay and Ali have been coming to this location for years and both have never used their black cards even though each of them have one in their name. As for Dina, the owner tells X17online exclusively:

"Dina's most likely just taking advantage of the card. Of course she was denied use because her name's not on there. Not everyone is selected to get one. The only celebrity in the family is Lindsay therefore Carvel would not have issued one to Dina nor to Ali."

Carvel has just issued this statement:

As part of Carvel’s 75th Anniversary celebration last year, we issued 75 Black Cards to celebrities. These cards were issued in the celebrities' names and require the card holder to be present at the time of use. Many celebrities have enjoyed their cards at our Carvel Ice Cream shoppes and have shared their excitement with being included in the celebration.

Unfortunately, the Lohan family has been abusing the card. While the card was issued in Lindsay's and Ali’s names only, her extended family has repeatedly used the card without either girl present. At first, we graciously honored their requests while explaining that the Black Card was not a carte blanche for unlimited Carvel Ice Cream for the extended Lohan family and friends. After more than six months of numerous and large orders for ice cream, we finally had to cut off the card and take it back.
Dina Lohan reacted badly and called the police to have her card returned. The police responded and did return the card to Dina with instructions not to use it again.
This is an unfortunate situation where certain people feel entitled to use a celebrity’s name for their own purposes. We regret that the Lohan family is upset and hope this matter is put behind us quickly.

Sorry Dina. Membership has its privileges - mommies using daughters' memberships doesn't :(

Last night we snapped Jayde Nicole, Holly Madison and a handful of other surgically enhanced Playmates leaving Katsuya, and the ladies may not be natural beauties, but they're certainly not that hard on the eyes...

Our fave cougar on the prowl, Shauna Sand, got gifted last night after dinner in Hollywood because... well... she's a rock star. Def not just another hot blonde with a bangin' bod!

Ugly Betty is getting married!

America Ferrera, 26, is engaged to longtime boyfriend Ryan Piers Williams. Congrats to the happy couple!

Ferrera showed off a new diamond on the red carpet of The Illusionist in Scotland at the Edinburgh Film Festival on Wednesday.

The two met at USC as film students and have been living together since 2007.