Singer and former reality TV personality Brooke Hogan has ended her engagement to Dallas Cowboys offensive lineman Phil Costa, E! News reported Friday. A representative for Hogan, the 25-year-old daughter of professional wrestling icon Hulk Hogan, told E! she wants to concentrate on her music, which is "her passion and love." "Brooke moved back to LA a couple of weeks ago to be closer to her mom Linda Hogan and she is currently in the studio working on her album," the publicist said. "She's halfway through [the album] and expects to release it in the spring." Hogan and Costa announced their engagement last summer in Las Vegas.