To celebrate Arizona's centennial, students from the UA School of Theatre, Film and Television's musical theater touring company, Encore!, perform songs from the Wild West and World War II eras, and love songs in tribute to Arizona's Valentine's Day statehood, in between vintage commercials and facts about Arizona and its people, from 7:30 to 8:30 p.m., Saturday, Jan. 21; free, but tickets are required. Call 621-1162, or visit az100.arizona.edu for tickets or more information about UA tributes to Arizona's centennial.