Lea Michele dated Matthew Morrison.

The 27-year-old actress - who denied being romantically involved with her Glee co-star in the past - has finally confessed that the pair dated in her new book Brunette Ambition. However, Lea - who was in a relationship with her late co-star Cory Monteith from late 2011 until he passed away form an alcohol and heroin overdose in July 2013 - insists she dated Matthew, 35, long before they began working together on the set of Glee.

"When we shot the pilot [for Glee], I met Cory Monteith, Kevin McHale, Amber Riley, and Chris Colfer for the first time. I had worked on Broadway with Jenna Ushkowitz and Matthew Morrison before. Matt had been a friend of mine for years, and in fact we'd actually dated back in the day for a Broadway beat," she wrote.

Lea - who plays Rachel Berry on the hit FOX TV show - denied rumors she was involved with Matthew as they filmed the first series of Glee in 2010, claiming the pair enjoyed a "close" friendship instead.