Critics’ Choice

* Side Show (Colony Theatre Company, 555 N. 3rd St., Burbank, [818] 558-7000). Julie Dixon Jackson, left, and Misty Cotton star in the Southern California premiere of Bill Russell and Henry Krieger’s musical about conjoined twin sister vaudeville stars during the Depression. In the musical, the twins’ concerns become a metaphor for the issue of how to define self and one’s relationship to others. Thursday-Saturday, 8 p.m.; Sunday, 2 p.m. Ends April 7. $28-$31.