Ashlee Simpson, Evan Ross

Ashlee Simpson, Evan Ross

This Nov. 18, 2013 file photo shows Ashlee Simpson, right, and Evan Ross at the premiere of “The Hunger Games: Catching Fire” in Los Angeles. Simpson is engaged to boyfriend Evan Ross, who is the son of Diana Ross. The pair announced the news on Twitter Monday, Jan. 13, 2014, confirmed Simpson’s publicist Janet Ringwood. Simpson was previously married to Fall Out Boy bassist Pete Wentz. They have a five-year-old son named Bronx. Ross is an actor who will appear in the final two installments of “The Hunger Games.”(Photo by Jordan Strauss/Invision/AP, File)

FILE – This Nov. 18, 2013 file photo shows Ashlee Simpson, right, and Evan Ross at the premiere of “The Hunger Games: Catching Fire” in Los Angeles. Simpson is engaged to boyfriend Evan Ross, who is the son of Diana Ross. The pair announced the news on Twitter Monday, Jan. 13, 2014, confirmed Simpson’s publicist Janet Ringwood. Simpson was previously married to Fall Out Boy bassist Pete Wentz. They have a five-year-old son named Bronx. Ross is an actor who will appear in the final two installments of “The Hunger Games.”(Photo by Jordan Strauss/Invision/AP, File)