EQUUS (June 8-July 3)
John Drew Theatre at Guild Hall, East Hampton, 631-324-0806, guildhall.org

The big star turn of the summer season: Alec Baldwin ("30 Rock," "It's Complicated") stars as Dr. Martin Dysart, the psychiatrist treating Alan Strang, a young man who has a serious thing for horses, in a reworking of Peter Shaffer's "Equus," directed by Tony winner Tony Walton. Young British actor Sam Underwood, recently seen Off-Broadway in "Candida," plays Strang. You may recall the hoopla over another Brit, Daniel ("Harry Potter") Radcliffe, appearing nude in the Broadway revival. Nudity and mature themes in this "Equus," too.

DISSONANCE (June 1-27)
Bay Street Theatre, Sag Harbor, 631-725-9500, baystreet.org

The New York premiere of a play by Damian Lanigan about music and musicians, directed by Lonny Price. A classical quartet is in conflict, but the players grow even more confrontational when a rock star intervenes. Love and loyalty, ego and emotion are played like a high-strung violin.

HAIRSPRAY (JULY 7-31)
Gateway Playhouse at the Patchogue Theatre for the Performing Arts, 631-286-1133, gatewayplayhouse.com

Long Island professional premiere of this Tony-winning musical based on the John Waters movie. Tracy Turnblad can't make it on the Baltimore's sock-hop TV show because she's too fat, and her friends can't make it because they're black. You'll want to dance likes it's 1961.

FIFTH OF JULY (July 6-Aug. 1)
Bay Street Theatre, Sag Harbor, 631-725-9500, baystreet.org

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Terry Kinney, who co-founded Chicago's acclaimed Steppenwolf Theatre Company with Gary Sinise and Jeff Perry, directs this co-production with the Williamstown Theatre Festival in the Berkshires. The Broadway hit from 1977, written by Lanford Wilson of Sag Harbor, deals with former student activists and friends trying to cope with their changes in attitude since leaving college in the Vietnam protest years.

BETRAYAL (July 16-Aug. 8)
Arena Players, East Farmingdale, 516-293-0674, arenaplayers.org

A major drama by 2005 Nobel laureate Harold Pinter, presented in reverse chronology, examines various betrayals and their effect on human relations. Jerry and Emma have carried on an affair without the knowledge of their spouses. Emma confesses her infidelity to her husband, but keeps this a secret from her lover for four years, while the affair continues. Two years after their breakup, Emma meets Jerry to tell him her marriage is over.

ROMANCE (Aug. 10-Sept. 5)
Bay Street Theatre, Sag Harbor, 631-725-9500, baystreet.org

We don't necessarily think of David Mamet as a comic writer. More of a wicked one who can be funny. But "Romance" is an all-out farce - with chiropractors, Catholics, Protestants, Jews, gays, lawyers, blacks and even world peace and Shakespeare taking politically incorrect hits.

And keep in mind these other big productions

DAMN YANKEES (July 8-Aug. 29)
Engeman Theater, 250 Main St., Northport, 631-261-2900, engemantheater.com

It takes the devil to beat the Yankees in this best musical Tony winner from 1955. It opens the John W. Engeman Theater at Northport's all-classic-musical season.

ALTAR BOYZ (July 14-31)
Gateway Playhouse, Bellport, 631-286-1133, gatewayplayhouse.com

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It's the Long Island premiere of the musical spoof about the last night of a fictitious Christian boy band's "Raise the Praise" tour. They sing such behave-yourself lyrics as "Girl, you make me wanna wait." Gateway Playhouse, Bellport,

SUMMER OF '42 (June 5-27)
Smithtown Center for the Performing Arts, 2 E. Main St., 631-724-3700, smithtownpac.org

A wistful musical adaptation of the 1971 coming-of-age film. Teen boys in Nantucket discover the sex part of the opposite sex while World War II seems entirely distant to all but one of their would-be lovers.

A JEW GROWS IN BROOKLYN (Aug. 8)
Westhampton Beach Performing Arts Center, 76 Main St., 631-288-1500, whbpac.org

You don't have to fuhgettaboutit if you're not Jewish and not from the borough. Four singers lead you through the life story of a child of Holocaust survivors in 1960s Brooklyn - celebrating everything from stickball to the Catskills.

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THE MARVELOUS WONDERETTES (July 10-Aug. 29)
Smithtown Center for the Performing Arts, 2 E. Main St., 631-724-3700, smithtownpac.org

Four girls in matching crinoline skirts move on from their 1958 prom to record such hits as "Lollipop," "Dream Lover," "Stupid Cupid" and "Lipstick on Your Collar." It rocks - even if doo-wop girl groups are before your time.

ANNIE GET YOUR GUN (July 10)
THE PRODUCERS (July 31)
Huntington's Summer Arts Festival, Heckscher Park, 631-271-8423, huntingtonarts.org

Free one-night stands for two musical faves performed by the Plaza Theatrical Company and BroadHollow Theatre Company, respectively.

A MIDSUMMER NIGHT'S DREAM (July 2-Aug. 29)
Arena Players in the courtyard of the Vanderbilt Museum mansion, Centerport, 516-293-0674, arenaplayers.org

Shakespeare's seasonal romp and a favorite of Bard in the Park productions everywhere. 

BEDROOM FARCE (Through June 13)
Hampton Theatre Company, Quogue Community Hall, 631-653-8955, hamptontheatre.org

Alan Ayckbourn has been called "Britain's Neil Simon." We assume that's a compliment. The title says it all in this escapade involving four couples and three bedrooms.

DAVI SINGS SINATRA (July 16-18)
Adams Playhouse, Hofstra University, 516-463-6644, hofstra.edu/hofstraentertainment

You don't have to "Fly Away" to Broadway. Hofstra grad Robert Davi, tough guy in the James Bond film "License to Kill" and in "Die Hard," returns to his lyrical roots with his salute to Sinatra (with whom he appeared in "Contract on Cherry Street"). 

AVENUE Q (Aug. 25-Sept. 19)
Gateway Playhouse, Bellport, 631-286-1133, gatewayplayhouse.com

Princeton is a Muppet-like college grad with big dreams and a puny bank account. The Tony-winning musical may look like the Muppets, but the jokes and lyrics are raunchier.