J. Lo & Her Bee Hive Head to 'The Back-Up Plan' UK Premiere

Jennifer Lopez donned a fancy updo at the UK premiere of her new film The Back-Up Plan held ad Vue Leicester Square Wednesday in London. The actress/singer/fashionista has been looking awesome while promoting her new rom-com, rocking some fashion forward looks!

Jen's twins were spotted jet-setting with the A-lister as she traveled across Europe!

OK! GALLERY: JENNIFER LOPEZ'S TWINS 'BACK-UP' HER TRAVELS

The hot mom knows how to incorporate her family with work!

FOR MORE ON J.LO'S SIZZLIN' STYLE, PICK UP THE NEW ISSUE OF OK!, ON SALE EVERYWHERE THURSDAY, APRIL 29!