While couples around the world were tying the knot in hopes of having a marraige just a tad luckier than the rest of us, a lucky many were enjoying one of the Live Earth concerts that were happening in seven locations worldwide Saturday, including a few sexy (and conscious) stars who came out to support the push for increased awareness of the climate crisis.

Model Petra Nemcova made an appearance at the New York show wearing a Catherine Malandrino silk cotton button front bubble dress...

"Is it me or is it hot out here?

"Call me if you wanna talk environment. Nemcova, out!"

Meanwhile, on another side of the globe, singer Rihanna selected a different piece from the same Malandrino Spring/Summer 2007 line to jazz up her Tokyo show appearance: a studded satin cropped jacket that popped more than her hit single, "Umbrella."

It seems that it was just too hot to actually sing so Rihanna enlisted the help of her audience (who were too mesmerized by the glare of the aformentioned jacket to notice anyway).

Talk about making a statement. Hot!

(Photos courtesy of Getty Images)