Kelly Rowland is off the market! 

The Destiny's Child singer said "yes" when her longtime boyfriend/manager Tim Witherspoon popped the question last week, Bossip.com reports.

The low-profile couple have been dating on and off for the last four years.

Witherspoon sparked reports that he put a ring on it when he posted a video of Kelly wishing one of their friend's kids a "Happy Birthday" via Instagram ... where Rowland was noticeably sporting one giant rock on that finger!

Check out the cute video below.

We are so excited for the "X Factor" judge! Wonder when the cute couple will start planning their wedding?!

What do you think of Kelly's engagement news? Tell toofab in the comment section below, and click "Launch Gallery" above to see even more celebs' engagement and wedding bling!

Hot Videos