Bret Michaels
Poison’s lead singer in concert, featuring songs from his upcoming new album, Thursday, Sept. 20, 8 p.m. $69.50, $49.50 and $39.50. NYCB Theatre at Westbury, 960 Brush Hollow Rd, Westbury. (800) 745-3000 or www.livenation.com.
September Sing-A-Long
Join Alan Greenberg for an evening of song, Thursday, Sept. 20, 7:30 p.m. Long Beach Historical Society, 226 West Penn St., Long Beach. 432-1192.
Sweet Charity
The award-winning musical about a dancer-for-hire in Times Square, Thursday and Friday, Sept. 20-21, 8 p.m.; Saturday, Sept. 22, 3 and 8 p.m.; Sunday, Sept. 23, 2 p.m.; Wednesday, Sept. 26, 8 p.m. $65. John W. Engeman Theater, 250 Main St., Northport. (631) 261-2900 or www.engemantheater.com.
Deathtrap
Ira Levin’s stylish play-within-a-play thriller, Friday and Saturday, Sept. 21-22, 8 p.m.; Sunday Sept. 23, 2:30 p.m. $25, $23 seniors, $18 students, $14 youth 12 and under; $28 at door. BroadHollow Theatre, 700 Hempstead Tpke., Elmont. (631) 581-2700 or www.broadhollow.org.
Looking
Comedy about four middle-aged singles seeking relationships, Friday and Saturday, Sept. 21-22, 8 p.m.; Sunday, Sept. 23, 2:30 p.m. $20, $18 seniors and students, $14 youth. All tickets $25 day of show. BroadHollow Theatre, BayWay Arts Center, 265 E. Main St., East Islip. (631) 581-2700 or www.broadhollow.org.
Sinbad
The actor-comedian presents his stand-up act, Friday, Sept. 21, 8 p.m. $59.50, $39.50 and $29.50. NYCB Theatre at Westbury, 960 Brush Hollow Rd, Westbury. (800) 745-3000 or www.livenation.com.
Dall’ Italia con Amore
A night of song and laughter, in “From Italy with Love,” presented by the Sons of Italy of America, Grand Lodge of New York, Saturday, Sept. 22, 8 p.m. With comedian “Uncle Floyd” Vivino, tenor Christopher Macchio and soprano Marissa Famiglietti. $35. Hofstra University, Helene Fortunoff Theater, Monroe Lecture Center, Hempstead. 463-6644 or www.nysosia.org.
Jackie Mason
The iconic performer in his new one-man show, “Fearless,” Saturday, Sept. 22, 7 p.m. $69.50, $49.50 and $29.50. NYCB Theatre at Westbury, 960 Brush Hollow Rd, Westbury. (800) 745-3000 or www.livenation.com.
The Musical Comedy Murders Of 1940
Ingenious comedy about showbiz folks gathered at a mansion to flush out a serial killer, Saturday, Sept. 22, 8 p.m.; Sunday, Sept. 23, 3 p.m. $20, $17 students and seniors Friday and Sunday. Merrick Theatre & Center for the Arts, 2222 Hewlett Ave., Merrick. 868-6400.
Barynya
The renowned Russian folk ensemble performs, Sunday, Sept. 23, 1:30 and 4 p.m. Program includes traditional Russian, Cossack, Jewish and Gypsy Roma dancing, music and song. Tickets required. Hewlett-Woodmere Public Library, 1125 Broadway, Hewlett. 374-1967.
Celtic Thunder
The Irish vocal group in concert, Sunday, Sept. 23, 2 and 7:30 p.m. $77.50, $74.50, $67.50, and $29.50. NYCB Theatre at Westbury, 960 Brush Hollow Rd, Westbury. (800) 745-3000 or www.livenation.com.
Extra Special
Premiere of a new comedy by John Blenn that delves into the world of movie background actors, Sunday and Monday, Sept. 23-24, 8 p.m. $15, $18 at door. Bellmore Movies, 222 Pettit Ave., Bellmore. 783-8863.
Hispanic Heritage Celebration
A spirited evening of music and dance, Sunday, Sept. 23, 7:30 p.m. Eisenhower Park, Lakeside Theatre, East Meadow. 572-0200 or concertline, 572-0223.
Kevin Devine
The indie singer-songwriter in concert, with Rich Albergo, Wednesday, Sept. 26, 8 p.m. $20. Madison Theatre, Molloy College, 1000 Hempstead Ave., Rockville Centre. 678-5000 ext. 7715 or www.madisontheatreny.org.