The boys are all smiles as they pose next to Bing's Spider-Man-themed birthday cake. She maintains a friendly relationship with Bellamy, too: Back in February, the actress took her sons to a Twenty-One Pilots concert with her ex -- more on that in the video above!See more photos of Kate Hudson and her sons: HONOLULU - OCTOBER 11: Actress Kate Hudson and her son Ryder Russell Robinson enjoy a preseason game between the Los Angeles Lakers and the Golden State Warriors October 11, 2005 at Stan Sheriff Center in Honolulu, Hawaii. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User consenting to the terms and conditions of the Getty Images License Agreement.

The center of the state is dominated by Central Valley, a major agricultural area.

California contains both the highest and lowest points in the contiguous United States (Mount Whitney and Death Valley) and has the third-longest coastline of all states (after Alaska and Florida).

" • "Love, Loss and a Beanbag Toss" • "How I Met Your Brother...

And Sister" • "Will Sing for Food Truck" • "Stuck in the Mini with You" • "Pod People from Pasadena" • "The Mutt and the Mogul" • "Stan Gets Schooled" • "Karl Finds Out Stan's Secret" • "The Kids Find Out Stan Blogs"Season Three: "Guess Who Gets Expelled?

(Photo by Marc Piasecki/Film Magic)MIAMI, FL - FEBRUARY 27: Kate Hudson, and her sons, Bingham Hawn Bellamy and Ryder Robinson are sighted at Miami International Airport on February 27, 2013 in Miami, Florida.

(Photo by Troy Rizzo/Film Magic)LOS ANGELES, CA - JULY 30: Kate Hudson is seen at Los Angeles International Airport with her sons, Bingham Hawn Bellamy and Ryder Robinson on July 30, 2013 in Los Angeles, California.

(Photo by Barry King/Getty Images)WESTWOOD, CA - MAY 10: (L-R) Actress Kate Hudson and musician Danny Fujikawa attend premiere of 20th Century Fox's' 'Snatched' at Regency Village Theatre on May 10, 2017 in Westwood, California.

(Photo by Barry King/Getty Images)WESTWOOD, CA - MAY 10: Kate Hudson and Danny Fujikawa arrive at the premiere of 20th Century Fox's 'Snatched' at Regency Village Theatre on May 10, 2017 in Westwood, California.

(Photo by GVK/Bauer-Griffin/GC Images)HOLLYWOOD, CA - JANUARY 16: (L-R) Actress Kate Hudson and sons Bingham Hawn Bellamy and Ryder Robinson arrive at the Premiere of Dream Works and Twentieth Century Fox's 'Kung Fu Panda 3' at TCL Chinese Theatre on January 16, 2016 in Hollywood, California.

(Photo by Barry King/Getty Images)HOLLYWOOD, CA - JANUARY 16: Actress Kate Hudson (R) with sons Ryder Robinson and Bingham Hawn Bellamy attend the premiere of Dream Works Animation and Twentieth Century Fox's 'Kung Fu Panda 3' at the TCL Chinese Theatre on January 16, 2016 in Hollywood, California.

(Photos by Christopher Peterson/Buzz Foto.com) Buzz Foto LLC 1112 Montana Ave suite 80 Santa Monica CA 90403 1 3 1 3 NEW YORK CITY - APRIL 30: (L-R) Kate Hudson and Ryder Robinson sighting at Matt Umanov Guitars (vintage guitars since 1965) in Bleecker Street on April 30, 2010 in New York City.