See a hilarious paparazzi photo of Ryan Phillippe getting photobomb -- singer Sarah Hudson, Kate Hudson's cousin -- while walking down a sidewalk in West Hollywood Jan. 16. Credit: MOE/FAMEFLYNET PICTURES

Sassy photobomb! Ryan Phillippe became the victim of a hilarious photobomb while walking down a sidewalk in West Hollywood on Thursday. Jan. 16.

PHOTOS: Celebrity photobombs

The handsome 39-year-old actor was being photographed by paparazzi while out with friend Brian Washington when the sneak attack occurred. "Got papped w/ @bwash @bwash & that lady," Phillippe posted on Instagram with a photo of the funny incident.

In the paparazzi photo, a woman wearing a colorful poncho dress struck a silly pose while Phillippe walked past her. Washington also shared the photo on Instagram and joked, "Ok. One more new friend . . ."

That "new friend" happened to be pop singer-songwriter Sarah Hudson. The Ultraviolet Sound band member is a first cousin of Kate Hudson. Her godmother, Goldie Hawn, was previously married to her uncle, Bill Hudson.

Hudson shared the photo of herself with Phillippe on Instagram and explained her actions. "Just thought I'd make this dudes 'paparazzi' pic a little sassier this morning!" she wrote.