Amanda Seyfriend and Justin Long Debut as a Couple on Red Carpet for 'Hedwig and The Angry Inch'

Mean Girls Star Amanda Seyfried debuted her new boyfriend Justin Long on the red carpet at Broadway musical Hedwig and the Angry Inch last night at the Belasco Theatre in New York City.

This was the first time that the couple who have been dating since the summer of 2013 have attended an event together. Seyfried went to support star of the Musical Neil Patrick Harris who she co-starred with in the upcoming comedy A Million Ways to Die in the West.

The reason that we rarely see them attending events together is that Seyfried likes to keep her private life as far from the public eye as possible. Long attended her premiere of Lovelace last July but the two opted out of walking the red carpet together. A source told Us Weekly that the couple was "inseparable" last night.

Seyfried tries to maintain more of a low key profile in the public eye but finds it difficult telling W magazine in April that, "I felt like no one paid much attention to what I was doing. That was good. But Les Mis was an international hit, and that changed things. Before, I was a little more anonymous. It may be that I'm older, and it may be that social media is everywhere now, I don't think I was really famous until last year."

The two have been mum about the relationship in the public eye but that doesn't stop the pair from post cute little snapshots into their live via Instagram.