So much for a LiLo-SamRo reunion.

We hear Lindsay’s already been replaced!

According to The Chicago Sun-Times, DJ Samantha Ronson has been spied romancing a woman with a startling resemblance to Lindsay Lohan less than a week after ending her nearly two year relationship with the troubled Hollywood starlet.

Red-hot spies at L.A. hotspot Chateau Marmont are emphatic that they saw the butch celebrity spinner “with another woman — somewhat of a Lindsay look-alike, but with very dark hair…”

”They sure looked very cozy, if you know what I mean,” says one Chateau source.