Jennifer Lopez is back in the studio rehearsing for her upcoming tour alongside choreographer Sienna Lalau

‘ON THE FLOOR’: Jennifer Lopez (left) is back in the studio rehearsing for her upcoming tour alongside choreographer Sienna Lalau.jlo/Instagram

JOYRIDERS: In Liverpool, England, filming “A Fountain of Youth,” John Krasinski and Natalie Portman make each other laugh.KIERAN / SplashNews.com

KNICK AT NIGHT: Julianne Moore and hubby Bart Freundlich watch as the New York Knicks take on the Indiana Pacers.juliannemoore/Instagram

RE-PEAT MOSS: Lila (left), 21, and mom Kate Moss twin it up at the Gucci Cruise fashion show in London.Getty Images for Gucci

GARDEN STATE: Lucy Liu introduces son Rockwell, 8, to the White House’s Rose Garden.Lucy Liu / Instagram

MOM AT PLAY: Emily Ratajkowski fashionably watches over son Sylvester, 3, during her off-hours.Emily Ratajkowski / Instagram

ELLE RAISER: Reese Witherspoon suits up again as “Legally Blonde’s” Elle Woods — with pooch Bruiser — to announce a prequel series on the Lower East Side.Getty Images for Amazon

BULLYS FOR HER: Kristin Davis cozies up to her “And Just Like That” canine co-stars while filming in Central Park.GC Images

SWIMSUIT SEASONING: Spice Girl Melanie Chisholm takes a break from her fitness routine in Brisbane, Australia.Melanie C / Instagram

TREASURE SIGHTED: Out and about in central London, Johnny Depp takes style notes from his character Captain Jack Sparrow.SplashNews.com

BUMPER CAR-ESS: Pregnant with her first child, Hailey Bieber basks in her own glow.hailey bieber / Instagram

ICING AGE: For her 25th birthday, singer Sabrina Carpenter treats herself to a cake adorned with a Leonardo DiCaprio meme.Sabrina Carpenter / Instagram

SIGN LANGUAGE: At the Austin, Texas, premiere of his film “Hit Man,” Glen Powell’s parents prank their son with cardboard.Getty Images

THEIR CRUSH WITH EYELINER: At the after-party for the NYC premiere of the film “Back to Black,” R.E.M.’s Michael Stipe (from left), director Sam Taylor-Johnson and actress Marisa Abela join forces.Marion Curtis / Starpix for Focu