Opera

The West Valley Opera Theatre will perform two short, one-act operas this weekend in Canoga Park. Gian Carlo Menotti’s “The Telephone” is a comedy love triangle among a man, a woman and her telephone; and Johann Sebastian Bach’s “Coffee Cantata” deals with a woman’s obsession with coffee during the coffee craze of the 1700s. Featured singers include Benito Galindo, Elizabeth Holloway, Steven Hyder, Tracy Shea and Pablo Veguillo.

* “The Telephone” and “Coffee Cantata”; Friday-Saturday, 8 p.m.; Sunday, 2:30 p.m.; West Valley Playhouse, 7242 Owensmouth Ave., Canoga Park. $16-$18. (818) 884-1907.

Collectibles

Featuring the wares of more than 200 dealers, the All-American Collectors Show will offer a large selection of tin wind-up toys, cast iron toys, Disney toys, Americana, penny arcade items, movie memorabilia, trains, dolls, slot machines, gambling and advertising items, this weekend in Glendale.

* All-American Collectors Show; Saturday, noon-7 p.m.; Sunday, 10 a.m.-4 p.m.; Glendale Civic Auditorium, 1401 N. Verdugo Road. $6. (818) 980-5025.

More Collectibles

The Hollywood Collectors and Celebrities Show is scheduled this weekend in North Hollywood. Some of the celebrities scheduled to appear are Shirley Jones, Danny Bonaduce, Kevin McCarthy, Ruta Lee, Clint Howard and Carol Lynley. There will also be 200 vendors selling Hollywood memorabilia and collectibles.

* Hollywood Collectors and Celebrities Show; Saturday-Sunday, 10 a.m.-5 p.m.; Beverly Garland Holiday Inn, 4222 Vineland Ave., North Hollywood. $10. (818) 980-8000.

Celtic

The Orange County-based Celtic band Tamlyn will perform Sunday in North Hollywood. Drawing upon Scottish, Irish, English, Welsh and American folk traditions, the band blends elements of jazz and classical music to create bass-, flute- and fiddle-driven music, as well as reels, jigs and lullabies.

* Tamlyn; Sunday, 3:30 p.m.; Raven Playhouse, 5233 N. Lankershim Blvd., North Hollywood. $8-$10. (818) 727-9014.