SPL117013_001Jessica Biel made her musical debut in a three-night stage performance of 'Guys & Dolls' at the Hollywood Bowl this weekend.The 27-year-old actress played the part of Sarah Brown, a Manhattan missionary at odds with a gang of gamblers and eventually in love with one of them."The people (costars) are so skilled, and they just know how to be on a stage," Jessica has said. "So I feel like I'm learning and taken through, taking me along, they're there for me. So it's been a very nurturing experience." The Los Angeles Times gave the show, and Biel, high praise, saying that she was "glowing with an untrammeled radiance" and calling her duet with Brian Stokes Mitchell "lovely."Radar Online even reports that Biel got a standing ovation, lead by her boyfriend, Justin Timberlake:

Jessica Biel wowed the audience with her singing chops Friday night at the opening of Guys and Dolls and her boyfriend Justin Timberlake was there to cheer her on.It was a bit of role reversal for the sexy couple with Jessica doing the singing and grabbing the spotlight. RadarOnline.com spotted Justin arriving five minutes before the show started and sitting in a box with three friends at the Hollywood Bowl. He watched Jessica sing the lead role of Mission Leader Sarah Brown on stage.Justin was an enthusiastic boyfriend - he led the standing ovation at the end of the show and spent an hour backstage with Jessica after her performance.Bringing not only sexy back but also chivalry, Justin drove his leading lady home after her performance. Sources tell RadarOnline.com that Justin will be at the rest of Jessica's performances this weekend.
Check out Jess's interview and rehearsal.
Check out her performance.

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