Pop star Beyonce Knowles and her rapper-husband Jay Z enjoyed cocktails made from chicken bones recently.

The couple enjoyed some quality time together after performing at Beyonce's sold-out concert in The O2 arena here. They visited quirky pub White Lyan, in Hoxton, east London, known for not serving branded products, it's there that they sipped on unusual concoctions such as the Bone Martini.

"They weren't shy about trying something different. The oddest thing they drank was a cocktail made with chicken bones called the Bone Martini," a source told the Daily Star newspaper.

`We thought Beyonce would be more reserved when it comes to that kind of thing but she was loving it,` the source added.