The Youth Orchestras of Prince William's first concert of the season, performed by the Youth Symphony and Concert orchestras. 2 p.m. Sunday, Hylton High School, 14051 Spriggs Rd., Woodbridge. $7, students and seniors, $5. Season tickets are available. 703-590-7083.
'Light up the Sky'
The students in the Center for Fine and Performing Arts at Woodbridge Senior High School perform Moss Hart's comedy about a group of eccentric show business people in a Boston hotel suite on the opening night of a pre-Broadway tryout in 1949. 7:30 p.m. Fridays and Saturdays, 3 p.m. Sundays, through Nov. 21. Studio Theatre, Woodbridge Senior High School, 3001 Old Bridge Rd., Woodbridge. $7. 703-497-8040.
Ye Olde Tavern
A period-style meal and entertainment by the Rappahannock Colonial Heritage Society players and Little Maids of History at the 18th-Century Tavern Night. 7-11 p.m. Saturday. Dumfries Community Center Building, next to Town Hall, 17755 Main St., Dumfries. $50; reservations required. 703-221-2218.
'The Little Mermaid'
The Center for the Arts' Pied Piper Theatre performs the children's classic, directed by Vincent Worthington. 7:30 p.m. Saturdays, 3:30 p.m. Sundays, through Nov. 21. Osbourn Park High School, 8909 Euclid Ave., Manassas. $7 in advance, $8 at the door. 703-330-2787.