The R&B songstress' engagement to manager and boyfriend Tim Witherspoon was confirmed last month, after she was seen flashing a diamond on her ring finger in a candid Instagram video.
But Kelly has since remained tight lipped on the details of her new relationship status and is now trying to keep her bling under wraps once more, by hiding her hand in several recent photos.
And yesterday evening (9 December) she was just as low-key - although she couldn't stop smiling. Clearly, the look of love isn't as easy to conceal!
Kelly was seen at the LA Staples Centre supporting her 'sister' Beyoncé's husband Jay Z, who was performing at the venue as part of his Magna Carta tour.
The 32-year-old dressed casually for the concert in a pale denim shirt, which was layered over a white shirt and teamed with black leather jogging bottoms and trainers.
She accessorised with a black baseball cap and a bright red handbag that was worn across the chest and matched her red lipstick and nails.
However, the accessory we were itching to catch a glimpse of was tucked away behind her bag. Boo!
Kelly is currently busy starring as a judge and mentor on The X Factor USA, so no doubt she welcomed a night off yesterday to watch Jay in action.
Also at the Staples Centre were Paris Hilton and Nicki Minaj, who grabbed a quick photo together inside.
What do you think of Kelly's casual attire? Let us know below, as the best comment from across the website each week wins £50!