Sofia Vergara's best asset is that she's overflowing, nay, bursting, with self-confidence (what, you thought we were going to say something else?). The "Modern Family" knockout knows exactly what works for her luscious figure, which is why she's sheathed and shimmery in this teal, open-backed Zuhair Murad mermaid gown. But it turns out the beaded dress couldn't withstand the onslaught of slinkiness: During the show, it split up the rear, a PG-13 malfunction Sofia happily tweeted. Her butt crack wasn't the only thing flashing, however. She draped her impeccable silhouette in 175 carats of Neil Lane jewels.