Was that an engagement ring on the finger of Aerosmith singer Steven Tyler's longtime girlfriend, Erin Brady, when the couple was photographed on Christmas day? According to celebrity news site TMZ, it was indeed!

The 63-year-old frontman and his 38-year-old girlfriend were photographed in Maui, Hawaii, on Christmas with Brady sporting a ring on her wedding ring finger with a massive diamond. Check out the pictures of the happy couple on vacation here. They are pictured above arriving at the 2008 American Music Awards.

It would be the third marriage for Tyler, who tied the knot to model Cyrinda Foxe in 1978 and wed clothing designer Teresa Barrick in 1988. He has been dating Brady since 2006.

It's not known when Tyler proposed -- either before heading to Hawaii or during the tropical vacation. Regardless, we wish the couple the best of luck in their new life together!

Cyrinda Foxe