Steven Tyler engaged to girlfriend Erin Brady?

Steven Tyler is engaged to Erin Brady, according to reports.

TMZ spotted a rock on her finger this weekend and cites sources claiming it is in fact an engagement ring. It is a rather large diamond, for sure.

Tyler, 63, and Brady, 38, were in Maui on Christmas day along with her massive ring. It's unclear if Tyler proposed before or during the vacation.

Erin Brady with Steven Tyler at an event in 2010.

The two have been dating since 2006. The American Idol judge and Aerosmith rock legend has been married twice before. Liv Tyler is his daughter.

Congratulations to the couple if the happy news is indeed true!source