Donnie Wahlberg files for divorce

Donnie Wahlberg has filed for divorce.

The New Kids on the Block singer and wife Kim Fey filed papers on August 13 citing irreconcilable differences in separate Los Angeles courts.

Donnie's spokesperson insists the split is amicable, telling E! News: "I can confirm that the couple are divorcing. They have been separated for almost a year but remain close friends."

Kim is seeking sole custody of their two sons, Xavier, 15, and seven-year-old Elijah, with Donnie being allowed visitation rights. She is also requesting financial support and her legal fees to be paid for by the singer. His terms have not been revealed.

Donnie and Kim, both 39, have been married for just under nine years. Donnie and his bandmates - Joey McIntyre, Danny Wood, Jordan and Jonathan Knight - recently reunited and will release their first album in almost 15 years, 'The Block', next month to coincide with a world tour, which begins in Tokyo, Japan on September 18.