Paris Hilton celebrated her mother Kathy Hilton's birthday with a heartwarming tribute.

Taking to Instagram on Wednesday, Hilton posted series of photos with her mother, including from her childhood.

In the caption, Hilton penned a heartfelt note for her mother, stating, “Happy Birthday to the OG Queen, my mom @KathyHilton Mom, your resilience and compassion have taught me everything I know about navigating life with a smile, a heart full of love and a touch of sparkle.”

Hilton also praised her mother for being her rock, inspiration, and the coolest mom anyone could wish for.

She added, “You’ve always been my rock, my inspiration, and the coolest mom anyone could ever wish for On your special day, I just want to say thank you for being you—genuine, loving, and simply irreplaceable.”

“Celebrating you today feels like an homage to the incredible impact you’ve made, not just on me, but on everyone lucky enough to be in your orbit,” Hilton further added.

Read Also: Paris Hilton pays tribute to ‘forever iconic’ Elizabeth Taylor on her 92nd birthday

The businesswoman reminisced about the unforgettable moments they've shared together and expressed excitement for more laughter and late-night prank call parties in the living room.

“May this year bring you as much joy and happiness as you bring to everyone around you Love you to the moon and back!” Hilton concluded.