The superstar DJ and designer, 32, rocked the Alice + Olivia dress yesterday (14 February) when she attended a charity event in Los Angeles.
The dress - which we LOVE! - mixed red lips with nude chiffon and was perfect for the special romantic day.
Paris wore the fabulous frock to a charity fundraiser which aimed to raise awareness for children's charity Mending Kids.
After the event, which she also DJed at, Paris shared her excitement with her 12million Twitter followers.
She wrote: "Amazing time performing tonight for the @MendingKids Charity Event at @HOBSunset after @KISSOnline @NatashaBdnfielfd & Tom Jones."
She also thanked hair and make-up artist Etienne Ortega for working his magic on the naturally pretty star.
She tweeted: "Love my #Valentine glam. Thanks @EtienneOrtega, you are the best!"
Although Paris wasn't able to be with her model boyfriend River Viiperi on Valentine's Day, he did manage to get a message out to her on Twitter saying: "Having lunch with my Love @ParisHilton hey sexy... Nice to see you."
But sadly, he was only sat next to a picture of his girlfriend, and not the real thing!
Do you like Paris' Valentine's Day dress? Tell us what you think below!