Do you suspect your inner leprechaun will guide you to Harvard Square for a little celebrating? If so, you may want to check out Grafton Street. The restaurant will provide patrons who order off their special menu — which includes grilled salmon and slow-cooked corn beef — with a 20 oz. Guinness beer. While sipping, enjoy the tunes of Wheels of the World. The Irish duo will serenade guests from 5 p.m. to 8 p.m. Reservations accepted. No cover charge.

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