10 a.m.-4 p.m. (also 10 a.m.-5 p.m. Saturday). Cabarrus Arena & Events Center, 4751 N.C. 49 N., Concord. $10 for adults, $5 for kids 5-12. www.repticon.com.
The expo boasts thousands of reptiles, amphibians, invertebrates, spiders, small exotic animals, merchandise, cages, supplies, feeders, expert advice and more. Seminars feature animals that guests can interact with.
‘The Book of Mormon’
1:30 and 7 p.m. (also 8 p.m. Friday and 2 and 8 p.m. Saturday). Belk Theater, 130 N. Tryon St. $29.50-$134.50. www.blumenthalarts.org.
A religious satire musical with book, lyrics and music by “South Park” creators Trey Parker and Matt Stone, and Robert Lopez, a co-composer/co-lyricist of “Avenue Q.” It won nine Tonys, including Best Musical.
8 p.m. Fillmore Charlotte, 820 Hamilton St. $39.50. www.fillmorenc.com.
Since finishing second on “American Idol” in 2009, the pop singer has earned Grammy nominations, had No. 1 albums and radio hits, and toured the world as the frontman for Queen. With “Glee” star Alex Newell.