Better keep your pop tunes handy, you never know who might walk through the door of your store.

John Mayer, 29, was spotted Friday for the third time in as many months, jewelry shopping for himself and gal pal Jessica Simpson, 26.

This time, Star magazine reports, Mayer appeared at the Wanna Buy a Watch store in West Hollywood, Calif., where he picked up his and her vintage Rolex watches.

"He talked about Jessica the whole time he was here," a store employee told the magazine.


Last week, celebrity blogs reported that the couple spent part of their Roman holiday jewelry shopping, and in January, the crooners hit the jewelry counter at Barney's New York. I can't wait to see what April brings. It is the diamond month, after all.

The two singers met at a pre-Grammy blast in February 2005, when Simpson was still married to Nick Lachey. Tabloids began reporting their romance last summer, but the couple only went public with their relationship in January.