The former Destiny's Child star, 33, opted to wear a long black silk gown to the event, held to raise money for the Elton John Aids Foundation, and she ditched the bra and went au naturel.
Strutting her stuff on the white carpet in West Hollywood, Kelly was all smiles and turned to the side and back to give photographers a good flash of her revealing dress. Cheeky!
Notably absent was Kelly's diamond engagement ring, which she was given by fiancé Tim Witherspoon when he proposed last year.
Last week, Kelly was spotted shopping in LA without her engagement ring, however all is believed to be well in their relationship.
Kelly is notoriously shy and isn't too flashy when it comes to flaunting the bling - she's even keeping very quiet about her wedding plans.
Last month, however, during an appearance on US chat show The View, Kelly revealed that she wants a small and simple wedding.
More red carpet dresses from the Oscars 2014:
Copyright: Rex Features Startraks Photo