Celebrity summer fun!
Reese Witherspoon hung out with her "Big Little Liars" and "Wild" gal pal Laura Dern, while Nicki Minaj and boyfriend Nas spent time with their friend, Drake. The Kardashian/Jenner crew celebrated multiple big birthdays, with a Moana-themed bash for Penelope Disick and North West and a surprise party for Khloe Kardashian.
Elsewhere, Miley Cyrus resumed "The Voice" filming, Britney Spears got in her workouts while touring in Asia and Jennifer Hudson hung out with Boy George.
More of our favorite celebrity Instagrams of the week came from Kevin Hart, Carrie Underwood, Katy Perry and Serena Williams.
Check out our favorite celebrity Instagrams of the week: