A photo of the girls taken at their record release show (Jan. 25th)
A photo from when the Pierces appeared on Last Call with Carson Daly (taped Jan. 31st)
A photo of the Pierces from Paper magazine's Beautiful People 2005 (April)
Part of the write-up said "Determined to start anew, they moved to New York City, signed with Universal, recorded a second album and, fittingly, started dating a music executive and a Stroke (Albert Hammond Jr.), respectively. Incidentally, Catherine and the Stroke are engaged."
I can't say where the couple stands right now, but that is definitely proof of an engagement.
Also, in Strokes-related news, my sources tell me that several months ago, Albert signed on as executive producer for the Pierces' next video -- but the video has been put on hold. We'll see what happens with that.