:Jennifer Hudson
In this Sept. 5, 2008 file photo, actress Jennifer Hudson attends a gala screening of 'The Secret Life Of Bees' during the Toronto International Film Festival iin Toronto. (AP Photo/Evan Agostini), fileAssociated Press NEW YORK - Jennifer Hudson got a big surprise on her 27th birthday: an engagement ring.

Hudson's beau, David Otunga, popped the question while celebrating the actress-singer's big day in Los Angeles on Friday, her publicist, Jessica Kolstad, said Monday.

The couple have not yet set a wedding date, Kolstad said.

Hudson won a best supporting actress Oscar in 2007 for her role in "Dreamgirls." Her film credits also include "Sex and the City" and the upcoming "The Secret Life of Bees." The "American Idol" alum will release her debut solo album Sept. 30.

Otunga appeared as a contestant nicknamed "Punk" on the VH1 reality dating show "I Love New York 2."