The reality star joined her mother Kris Jenner and a host of other celebrities including Diddy to watch the musician being honoured on the Hollywood Walk of Fame on Thursday (10 October).
Khloe has been keeping a relatively low profile in recent weeks amid swirling rumours that her marriage to basketball player Lamar Odom is on the rocks. Neither she nor Lamar has directly responded to the various reports.
On Thursday, however, the Keeping Up With The Kardashians star was spotted flashing her wedding ring as she watched Babyface being honoured.
Khloe looked gorgeous in a Kardashian Kollection high-waisted skirt, a chunky Alexander Wang jumper and aviator shades.
She told fans: "I love that the weather is changing!"
Khloe looked proud as she watched Babyface delivering a speech, and later tweeted: "I'm so proud of you Kenny "Babyface" Edmonds!!!! You so dearly deserve your Hollywood Star!!!! #Emotional #Proud #FamilyFriends4Life."
The 29-year-old was joined by mum Kris at the ceremony, which took place the same week Kris confirmed she had separated from husband Bruce Jenner after 22 years of marriage.
Mother and daughter posed for a quick selfie together at the event.
Despite her recent split, Kris looked happy in the picture. Then again, both she and Bruce have spoken out this week to say the split was amicable and they remain the best of friends.