They’re a family of creative minds, and last night Samantha Ronson came out to support her sister Charlotte’s new fashion line I “Heart” Ronson.

Joined by their brother, producer Mark, the Ronson ladies looked to be enjoying themselves at the JCPenny-sponsored event, held at Bar Marmont in Los Angeles.

(L-R) Musician Mark Ronson, designer Charlotte Ronson, DJ Samant

As usual, Samantha was sporting her black Guns N Roses t-shirt with a black hat, black jacket, and dark jeans, while Charlotte added some color with a floral-pattern dress, grey jacket, and black stockings.

Meanwhile, Sam’s girlfriend Lindsay Lohan was reportedly banned from attending the star-studded affair – being stopped by five bouncers upon trying to gain entrance.

An insider told OK! magazine: “Unless Lindsay rams a truck through the red carpet or skydives in, she won’t be here.”

“Lindsay knew she was unwanted, but came anyway, to no avail,” said another source.