Current touring dates follow:

Sept. 17 at the Wentz Concert Hall at North Central College in Naperville, IL
Nov. 13 at Music Center at Strathmore, North Bethesda, MD
Feb. 28-29, 2012 at the Lyric Theatre in Stuart, FL.

Boom!, according to press notes, "celebrates the soundtrack of these sisters' childhood with unforgettable songs from the '60s and '70s." Expect songs made famous by Joni Mitchell, Carole King, Carly Simon, The Beatles, Paul Simon, Jimmy Webb and Stevie Wonder.

The sisters will also perform their earlier concert act, Sibling Revelry, Feb. 11, 2012, with the Duluth Symphony orchestra in Duluth, MN; and Feb. 22-26 with the Naples Symphony Orchestra in Naples, FL. To read Playbill.com's previous interviews with the singing sisters, click here.

Not only a singer, Ann Hampton Callaway is also an acclaimed songwriter, whose works have been performed by Barbra Streisand, Patti LuPone and dozens of others. For her Broadway bow in Swing!, Callaway garnered a Tony nomination for Best Featured Actress in a Musical, and her many recordings include "Ann Hampton Callaway," "Bring Back Romance," "To Ella with Love" and "After Ours." Callaway is also a recipient of 14 Manhattan Association of Cabarets and Clubs (MAC) Awards.

Liz Callaway, most recently on Broadway in The Look of Love, made her Broadway debut in the original cast of Stephen Sondheim's Merrily We Roll Along, and she also took part in the anniversary concert of that musical. For her work in the musical Baby, she received a Tony Award nomination for Best Featured Actress in a Musical, and her other Broadway credits include The Three Musketeers, Miss Saigon and Cats. Callaway's solo recordings include "Passage of Time," "The Beat Goes On," "Anywhere I Wander—Liz Callaway Sings Frank Loesser" and "The Story Goes On."

For more information on the new CD, visit www.psclassics.com.