Coldplay brought down the house Friday night with the final in a series of three concerts at LA's Hollywood Bowl.

In addition to the band's incredible roster of hits, Chris Martin lead the group in a slow, piano-driven rendition of the Beastie Boys' Fight For Your Right [to Party] in honor Adam "MCA" Yauch, who died of cancer at age 47 yesterday.

The crowd - including stars like Gwen Stefani, Ashley Tisdale, Ryan Phillippe, Zoe Saldana and even David and Victoria Beckham's son Brooklyn - stayed silent for most of the song and then went wild at the end. You've gotta see it ...

Naomi Watts doesn't stick her boys on a school bus in the morning, she straps them into their bike seats and she and Liev Schreiber bike the boys to school!

Naomi's toted son Samuel Kai, 3, while Liev carried Alexander "Sasha" Pete, 4 through the streets of New York Friday. Adorable AND environmentally-friendly!

Kim Kardashian's and Kris Humphries' attorneys faced off in LA divorce court Friday, six months after Kim decided to call it quits with her basketball hubby.

Kardashian's lawyer, Laura Wasser, said, "I feel that [Humphries'] personal feelins and maybe some media drive, is keeping this case alive."

"Certainly, they've been separated longer than they've been married," Wasser told the judge. Humphries' council said they need more time to gather information in order to decide whether to seek an annulment. Wasser warned that if Humphries decides to petition for an annulment, Kris will have to fork over some serious dough to Kim if she wins.

Neither Kardashian, 31, nor Humphries, 27, was in court today. A progress hearing is scheduled for Aug. 15.

Baby No. 3 is on the way!

Reese Witherspoon showed off her chic maternity style in an adorable striped sundress, paired with a black cardigan, tan sandals and shades, while on her way to a doctor's appointment in Santa Monica, on Friday afternoon.

The Oscar winner has been busy overseeing construction on her new Bel Air pad, which she is planning to move into with new hubby Jim Toth and her two kids Ava, 12, and Deacon, 8, when construction is completed this year.

The Walk The Line star also owns a country ranch in Ojai, California -- where she tied the knot last year! -- and a home in Brentwood, which means plenty of room for her three kids to play!

They say horizontal stripes are unflattering, but not if you're Izzy!

Katherine Heigl grabbed lunch at American Bistro in LA on Friday, and the Knocked Up star looked picture perfect in jeans and a nautical-inspired top. Has Mrs. Josh Kelley been hitting the gym?! Girlfriend is looking super slim and trim lately!

Maybe the 33-year-old actress is too busy with mommy duty to eat? The Grey's Anatomy stunner adopted her second daughter last month with her musician hubby Josh Kelley. The little tot joins big sister Naleigh, 3, who was adopted from South Korea in 2009.

Not only do we congratulate Katie on her baby joy, we also have to mention how happy it makes us that she quit smoking! We haven't seen the mom-of-two with a cigarette in ages. Bravo!

Now that all the craziness has died down from American Reunion, Alyson Hannigan can kick back and relax with her fam, while waiting for baby No. 2 to arrive!

The How I Met Your Mother star looked cute in a purple tie-died maxi dress and jean jacket, while accompanying her hot hubby Alexis Denisof and daughter Satyana on a play date in the park in Santa Monica, on Friday afternoon.

The darling 3-year-old was having a blast swinging from her daddy's arms, and making funny faces for the cameras, and Hannigan admits her little girl can't wait to be a big sis!

The American Pie star also exclaimed via Twitter this week, "Congrats to Jessica Simpson! Does this mean I now have the biggest baby bump in Hollywood?"

Hollywood's got a major case of Bieber baby fever!

Oscar-winning actress Mira Sorvino and husband Christopher Backus welcomed their fourth child, a baby girl named Lucia, on Thursday in LA. The new little one joins big siblings Mattea, 7, Johnny, 5, and Holden, 2.

Congrats on the stork's arrival!

In other news, The Voice host Carson Daly and his partner Siri Pinter are expecting their second child. The expectant mom announced the happy news on her blog, saying, "[I'm] 5 and a half months already! I am beyond thrilled and blessed. I have been eating a lot of cookies." The happy pair are already parents to their three-year-old son Jackson.

Happy times!

It's a battle of the metallics!

Steven Tyler looked a bit of a mess in his silver suit and piles of jewelry for his judging gig on American Idol Wednesday night, but Jennifer Lopez stole the show in a sexy cropped metallic top with black diamond detail, skintight pants and sexy maroon pumps!

Is it just us, or is La Lopez the best-dressed judge in American Idol history thus far?

The Aerosmith frontman might need to hire J. Lo's stylist, because his seventies-inspired bell-bottoms were pretty close to embarrassing!

Of course Lopez's new boy-toy Casper Smart was on hand to entertain his ladylove in between breaks, and he was even seen following the singer into her trailer after the show -- Ooh la la!

Which Idol judge rocked metallics best?