Beyonce showed off her moves on stage at London's O2 Arena Wednesday night while performing on her "Mrs. Carter World Tour."

The sexy singer flaunted her curves in a number of outfits, and was even joined at one point by husband Jay-Z for a duet on single "Drunk In Love."

Beyonce has played six shows at London's top concert venue, kicking things off last Friday night with a sold out show. She and Jay were spotted at the White Lyan pub afterward, where they drank Martinis made from chicken bones.

The trendy Hoxton, East London tavern serves up the Chicken Bone Martini, which -- contrary to what many people believe -- does not have actual chicken bones in it.

The cocktail is a cream, chocolate and cinnamon-based Martini with bits of Ganong Chicken Bone candy on the rim of the glass it's served in.

The candy, which some might say looks similar to actual chicken bones, is a cinnamon hard candy filled with chocolate from Ganong Bros., Limited, the oldest candy company in Canada, which is located in New Brunswick. Ganong has been in business since 1873.

An unknown source reportedly told London's Daily Star newspaper that the couple had, ahem, no bones about trying the cocktail.

"They weren't shy about trying something different. The oddest thing they drank was a cocktail made with chicken bones called the Bone Martini," the source, who either had no clue how the drink was made or just wanted to mess with the Daily Star reporter said. "We thought Beyonce would be more reserved when it comes to that kind of thing but she was loving it."