07/20/2005 AT 03:00 PM EDT
Model Mia Tyler, 26, and her husband Dave Buckner, 29, a drummer for the band Papa Roach, have split, PEOPLE confirms.
"After taking steps toward trying to improve their marriage, Mia and Dave have mutually decided that their lives are heading in different directions and they each want different things for their futures," says Tyler's rep Emily Olsen.
The couple, who have been married nearly two years, wed during an Aerosmith concert in Las Vegas in 2003.
Tyler is the daughter of Aerosmith frontman Steven Tyler and the half sister of Lord of the Rings actress Liv Tyler.
It was the first marriage for both Tyler and Buckner.