Hilary Duff is joining the cast of "Cheaper by the Dozen 2" for 20th Century Fox, reprising the role she played in the 2003 hit.

Hilary Duff is joining the cast of "Cheaper by the Dozen 2" for 20th Century Fox, reprising the role she played in the 2003 hit. Duff returns as the daughter of the characters played by Steve Martin and Bonnie Hunt, who are set for the sequel. Also on board is Eugene Levy.

The sequel sees Martin's brood facing off against Levy's perfect family of eight blond children. "The franchise rocks, and the sequel's gonna be fun," Duff says.

The 2003 rendition of "Dozen," a remake of the 1950 Clifton Webb-Myrna Loy-Jeanne Crain comedy, grossed more than $190 million at the worldwide box office.

Duff next stars with Heather Locklear in "The Perfect Man" for Universal, due out June 17, and is shooting "Material Girls," co-starring her sister Haylie, for Maverick Films.

She also will release a new album through Hollywood Records this summer and mount a concert tour that begins July 12 at Los Angeles' Greek Theatre.