Steven Tyler, shown here performing in the 2011 Steven Tyler, shown here performing in the 2011 “American Idol” finale, is celebrating his 66th birthday. (Chris Pizzello/ AP)

Hey, isn’t that… Rocker Steven Tyler, enjoying an early birthday dinner on Monday night at recently-opened Fiola Mare, complete with cake and candles.

The Aerosmith frontman and a group of eight to 10 pals had a quiet dinner in a back room of the sprawling Georgetown waterfront seafood temple, a spy tells us. At the end of the meal, the group sang “Happy Birthday” over cake. The former “American Idol” judge turns 66 tomorrow.

Tyler, who’s in town to advocate for copyright issues for songwriters, seems to be enjoying his visit to our fair city (and maybe he’s on a seafood tour?): He was spotted out at Pearl Dive Oyster Palace on Sunday night.

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