I like the casual clothes she is wearing. And no, it isn't because her shirt is a bit transparent. She just seems to be relaxed and not worried about looking good in front of everyone. And now I like the Beastie Boys
if i'm not mistaken, this belongs to the batch of pics where Yvonne and Zac were promoting Chuck in Australia back in 07-08-ish. she wore the same pants... under her coat was a sleeveless pale pink blouse?? Zac was holding a white heart shaped pillow in one of the pics.