Lindsay & Samantha Spin The Night Away
At the Sephora Celebrates Ten Years of Glamorous event, the pair kept mum, but Lohan's mom Dina gushed about Ronson.
"I love Samantha," Dina Lohan told reporters. "She's like a child to me. They're great friends and as long as my daughter is happy and healthy, it is what it is."
Ronson, wearing her usual skinny jeans and shirt, spun a mix of '80s tunes and current hits throughout the night, and Lohan, in a slinky multi-colored sequined dress, jammed alongside her.
Lohan spent the evening, drink-free, texting friends on her phone, playing with Ronson's deejay equipment and posing for pictures.
At midnight, the two left together, holding hands.