Nick Lachey filed divorce papers in Los Angeles Friday requesting spousal support from his soon-to-be ex-wife, Jessica Simpson, People magazine reported.

Simpson, who filed for divorce Dec. 16, said in her papers she did not want to pay alimony to her spouse of three years and co-star of MTV's popular reality show, "Newlyweds: Nick & Jessica."

In his papers filed Friday, Lachey cited irreconcilable differences for the split, People said.

In addition to alimony, Lachey asks for jewelry and other personal effects, his earnings and accumulations from and after the date of separation and additional property assets to be determined.

People noted Lachey's papers cite the couple's separation date as Dec. 13 while Simpson's papers say Nov. 23. The date is significant because Simpson earned nearly $1 million during the disputed weeks, which would be evenly split between them per California law.