Celebration of Freedom

The Festival of Freedom features activities at two locations. A USO dance and show will include performances by the Liberty Belles and the Swing Shift Dance Band, 5:30-9 p.m. Saturday, Loy E. Harris Pavilion, West and Center streets, Old Town Manassas. Free. 703-361-9800. The Freedom Museum celebrates with vintage aircraft and military vehicles, music, entertainment and reenactments. 9 a.m.-4 p.m. Saturday and Sunday. Manassas Regional Airport, 10400 Terminal Rd., Manassas. $10; children 10 and younger, $6. 703-393-0660.

'The Rat Pack'

Step back in time to the Sands Hotel in Las Vegas for an evening of music by Dean Martin, Frank Sinatra, Sammy Davis Jr., Peter Lawford and Joey Bishop performed by the First-Light Band and the Michael Girdy Band. Food, door prizes, dancing, caricature artists and a casino will round out this fundraiser, sponsored by the Prince William Public Library System Foundation, to benefit the Viva Van, an outreach project bringing books and library service to the Hispanic community. 7 p.m.-midnight Saturday. Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. $75; black tie optional. 703-792-6158.

Flute Concert

The Woodbridge Flute Choir opens its 2004-05 concert season with music by Hirose, Scott and Brahms. 3:30 p.m. Sunday. Manassas Baptist Church, 8800 Sudley Rd., Manassas. $5; $3 senior citizens and students. 703-244-5732 or www.woodbridgeflutechoir.org.

Marching Bands Compete

Woodbridge Senior High School hosts the Woodbridge Viking Invitational marching band festival. More than a dozen high school marching bands from Virginia and Maryland take the field and compete for more than $3,000 in prizes. 2:30 p.m. Saturday, Woodbridge Senior High School, 3001 Old Bridge Rd., Woodbridge. $5. 703-590-5370 or www.vikinginvitational.com.

On the Yellow Brick Road

Dorothy and Toto, their traveling companions and the great Oz himself take center stage in "The Wizard of Oz," performed by the Young People's Theatre. 1 p.m., Saturday and Sunday, through Oct. 24. Lazy Susan Dinner Theatre, Route 1, off Interstate 95, Woodbridge. Advance tickets, $12 with lunch, $8 show only; at the door, $14 with lunch, $10 show only. 703-717-0170 or www.yptnva.com.