Guy Harvey Shark Documentary: Noted marine wildlife conservationist and artist Guy Harvey will present Tiger Shark Express, a documentary he co-produced covering five years of expeditions he led in the Atlantic Ocean to study tiger sharks. A question-and-answer session follows the screening that starts at 5 p.m. at the University of South Florida St. Petersburg Student Center, 200 Sixth Ave. S, St. Petersburg. Free. (727) 873-4456.
Engelbert Humperdinck: The British pop singer took the stage name of a 19th century composer known for his sideburns. His platinum-selling theme song Lesbian Seagull was featured in the Beavis and Butthead Do America movie. Concert starts at 7 p.m. at the Mahaffey Theater in St. Petersburg. $39-$69. (727) 893-7832.
Joe Satriani: The guitar great who has toured with Mick Jagger and Deep Purple embarks on a solo tour of the U.S. to support his latest album Unstoppable Momentum. See him at 8 p.m. at Ruth Eckerd Hall in Clearwater. $38-$81. (727) 791-7400.
SEASON PREMIERE The X Factor, 8 p.m., Fox Kelly Rowland and Paulina Rubio join Simon Cowell and Demi Lovato on the judging panel this season. Also, Mario Lopez hosts all by himself, because he's a big boy!
MORE TO EXPLORE
Find restaurant news and reviews at tampabay.com/things-to-do.
Loretta Lynn: It's a crazy-busy concert week, but no other act comes close in stature to country icon Loretta Lynn, the first to give a strong voice to working-class women the world over. And she's still sassy at age 81. Show is Saturday at the Mahaffey Theater in St. Petersburg. $29.50-$50.50. (727) 893-7832.
Maroon 5 and Kelly Clarkson: This hefty double bill combines the dashing charm of Maroon 5 front man and Voice judge Adam Levine with the dynamic pipes of the original American Idol winner. Show is Friday at MidFlorida Credit Union Amphitheatre in Tampa. $29.50-$99.50. (813) 740-2446.
New Wave: It's a doubleheader of two of the most enduring New Wave synth-pop acts of the '80s. Pet Shop Boys (West End Girls) perform Friday at the Mahaffey Theater in St. Petersburg [$29.50-$99.50; (727) 893-7832]. On Saturday, Depeche Mode (Personal Jesus) takes the stage at the MidFlorida Credit Union Amphitheatre in Tampa [$29-$89.50; (813) 740-2446].