Singer/performer/actress Beyonce Knowles arrives to host the launch event for the Lorraine Schwartz "2BHAPPY" Jewelry Collection, held at the LAVO Night Club in NYC. After a night of partying, Beyonce's curly hair goes straight.

Singer/performer/actress Beyonce Knowles arrives to host the launch event for the Lorraine Schwartz "2BHAPPY" Jewelry Collection, held at the LAVO Night Club in NYC. After a night of partying, Beyonce's curly hair goes straight.

Pop superstar Beyonce's new behind-the-scenes documentary Year of 4 has debuted - and in it the pop star says she believes she used to be a mermaid in her previous life.

The show, which initially aired on MTV on Thursday in the US, was posted to her website following the initial broadcast.

The intimate special, which includes footage of the Best Thing I Never Had singer in her year-long hiatus prior to recording her new album 4, opens with black-and-white footage of her swimming.

In the Year of 4's opening sequence, the 29-year-old says: "I'm always happy when I'm surrounded by water. I think I'm a mermaid or I was a mermaid. The ocean makes me feel really small, and it puts my whole life into perspective.

"It humbles you and it grounds you and it makes me feel almost like I've been baptised. Am I the same Beyonce? Absolutely not."