The Pretty Little Liars star and Kalabretta were photographed together at a Los Angeles Dodgers baseball game on 18 June (15) and earlier this week (begs29Jun15) on vacation in Maui.

They also spent her birthday together last month (Jun15) and he posted pictures from the celebration on

One caption read: "perfect weekend for the perfect Lucy. Happy birthday."

A source tells Us Weekly magazine, "They met through mutual friends and bonded over a lot of things - just having fun and their shared love of music. She has a thing for musicians.

"They celebrated her birthday together with her friends. She's been happier than I've seen her for a while."

Hale has previously been linked to Lawson drummer Adam Pitts, actor Chris Zylka and country singer Joel Crouse.