HOLLYWOOD: Jessica Biel sings!

That may come as a surprise to audiences who only know the actress from her mostly dramatic work on television, including the long-running "7th Heaven," and in films such as "Stealth" and "The Illusionist."

Biel, 27, made her major musical-theater debut this weekend, when the Los Angeles Philharmonic presented a three-night run of a concert version of the classic "Guys and Dolls" at the Hollywood Bowl.

"I haven't really done anything like this," Biel said after a dress rehearsal Friday afternoon.