Kelly Rowland has confirmed she is engaged to her manager Tim Witherspoon.

The former Destiny's Child star - who was first rumored to have got engaged late last month after flaunting a diamond engagement ring in a short video on Instagram - will walk down the aisle with her on/off beau of four years after he popped the question over Skype.

The X Factor judge was in Bulgaria when Tim proposed to her, she recalled in an interview on The Queen Latifah Show, which airs tomorrow. "He put a ring on it! He asked me first on Skype and I was like, 'We're so far away from each other.' But it was so late, I remember we were both just kinda like, honestly, just staring at each other ... and he asked me, and it was just that simple to say yes," she gushed.

The 32-year-old beauty, who was previously engaged to NFL football player Roy Williams, feels she has finally found the right person and thinks of Tim as her "best friend." She added, "I was like, 'I got my best friend to ride through life with.' He really is my best friend."

The "Kisses Down Low" singer is notoriously private about her love life and admits she has kept her romance quiet for quite some time. "It's been a while. We've kept it very, very low - for years, to be completely honest," she said.