"They met through a friend. They've been seeing each other for a couple months now," a source told the celebrity news website.
"They are great together," a second insider said. "Super sweet."
Garth and ex-husband Peter Facinelli split up in March 2012 and finalized their divorce in June 2013. They have three daughters together -- Luca, 15, Lola, 10, and Fiona, 6.
Celebrity Families of 2014 [PHOTOS]