Jessica Biel brought the sexy back. Not only the back, but the sideboob too. Biel stunned onlookers when she arrived on red carpet for the Los Angeles premiere of "Hitchcock in a backless Gucci gown without a bra on Tuesday, Nov. 20. Biel, 30, gave an eyeful of side cleavage with an upswept hairstyle; she flaunted her athletic body with a toned back.