Kim’s Next Stop: The Mrs. Carter Show

She’s ready to rock.

Kim Kardashian was looking (Sasha) fierce when she stepped out to catch Beyonce perform at London’s O2 Arena Wednesday night.

Clad in a leather top and skin-tight trousers, the mom-to-be let her hair down — literally — as she boogied down to Queen B backstage at the songstress’ Mrs. Carter Show.

Kardashian — who’s boyfriend, Kanye West, frequently collaborates with Beyonce’s hubby, Jay-Z — tweeted an onstage photo of the singer, writing, “Oh hey B!”

The 32-year-old’s England visit is the third stop on her whirlwind overseas vacation. 

This past week, Kardashian was in Mykonos, Greece with her famous family  — where they were seen yachting and dining by the waterfront — before jetting off to Paris, France for a romantic rendezvous with her 35-year-old beau.