From “Hangin’ Tough” to “Hangin’ Solo….”

Donnie Wahlberg is officially single. The star of the new CBS cop show Blue Bloods and founder of the vintage boy band New Kids on the Block finalized his divorce from wife Kim Fey on Sept. 28, The Associated Press reported on Monday.

Wahlberg — the older brother of Academy Award nominee Mark Wahlberg — and Fey have been separated since early 2008 and filed divorce paperwork on the same day in August of that year.

The pair has two sons and were married nearly nine years.