Hayden Panettiere is enjoying some days off from filming Heroes. The actress went for a Monday morning workout at the gym, and spent the afternoon and evening hanging out with her friends around Los Angeles.

Wearing a FDNY cap, purple tank top and listening to music on her iPod, Katie Holmes ran the New York City Marathon on Sunday. Being the cute and close family that they are, Tom Cruise and little Suri were the to support momma as she ran 26.2 miles in 5:29:58hrs. The trio were reunited at the finish line, where a happy looking Katie told reporters she was “good, but feeling very tired.” She must have taken a quick nap, because Katie was out and about later that evening, wearing heels, supporting her man Tom at the screening of his new movie Lions for Lambs.

Nick Lachey and Vanessa Minnillo had been laying low for quite some time, but decided to get out and have some fun as they spent a few days soaking up the sun, partying and attending events in San Juan, Puerto Rico. The cute couple share the same birthday, November 9th, and speaking to OK! magazine about sharing his birthday, Nick says “I like to think I’m a gentleman about it and try to think of her. It’s her day as much as mine.” As for what Nick will surprise his girlfriend of a year and a half with, he will only say, “I already have it and actually asked if she wanted it tonight, but she said, ‘No, I want to wait.’ ”

Nick turns 34, while Vanessa turns 27.

Courteney Cox’s cute little daughter Coco doesn’t seem to mind the presence of the paparazzi, but mommy doesn’t look too pleased. The cutie gave the paps a cheeky little smile as they hand in hand walked home after Courteney picked up the little cutie from daycare.

Aside from taking care of her daughter, Courteney is spending time helping best friend Jennifer Aniston renovate her new home. According to a source, Courteney’s primary advice: Think bigger! “When the house is finished, Jen will have a huge pool area, more privacy, two extra bedrooms and a killer office-den.” The source added, “The new plans are costing Jen almost $3 million, but she trusts Courteney’s instincts.” $3 million?? Yikes! But since the cost of the actual house was $15 million, I’m sure Jennifer can afford it.

Christina Aguilera has finally confirmed what everyone has known for months. Despite proudly showing off her growing baby bump on numerous occasions, Aguilera remained mum about her pregnancy — until now.

In the December issue of Glamour UK, Christina says she will “enter into mommyhood” next year, and that she intends to be a working mom who’ll “balance” caring for her child and tending to her career — “I want to get it right,” she said.

Of her husband, Jordan Bratman, she says, “He’s thrilled! He’s just great.” The singer added that she finds Bratman “so supportive and amazing through everything. He came with me on the last leg of the tour and he was my support system. … I gush. I’m a lucky girl.”

Christina is pictured above arriving at Koi a couple of days ago, where she enjoyed a meal with her hubby.