Rumors say that Beyoncé Knowles has got engaged to her long-term boyfriend Jay-Z. She was spotted wearing a diamond engagement ring.

The beautiful singer - who has been dating record executive and rapper Jay-Z since 2002 - was with her beau at New York’s Butter nightclub. Her fans spotted her wearing the diamond sparkler on her ring finger.

One eyewitness said: “She was wearing a huge diamond engagement ring on her ring finger. When she noticed that I and some others noticed the rock, she quickly hid her hand.”

“Meanwhile, the former Destiny’s Child singer has signed up to star in new thriller Obsessed, in which she plays the wife of a man targeted by a female stalker. She will stars alongside Heroes beauty Ali Larter in the film directed by Steve Shill. This is not the first time Beyoncé is making appearance on big screen.

We would like to wish the highly popular singer best of luck if she is really engaged. We hope her diamond engagement ring glitters forever.