Steven Tyler\'s publicist has declined to comment on reports the rocker and \"American Idol\" judge is engaged to Erin Brady, his girlfriend of five years. However, UsMagazine.com said Tyler, 63, gave Brady, 38, a 5-carat brilliant cut diamond, set on a micro pave diamond and platinum band when he proposed. The ring was made by Loree Rodkin, a jewelry designer Tyler has long admired, the celebrity news Web site said. \"Having made Steven\'s jewelry for so many of the past years it was an honor to be part of his future... with all my love to Steven and Erin,\" Rodkin said in a statement issued to Us Weekly. Asked Wednesday if the singer is set to wed for the third time, his representative replied, \"No comment.\" Tyler was married to clothing designer Teresa Barrick from 1998 to 2006, and to model Cyrinda Foxe from 1978 to 1987. Foxe died in 2002. Tyler has four children from his various previous relationships, as well as one grandson.