Proving yet again that she’s the one audiences want, Olivia Newton- John recently extended her Las Vegas residency “Summer Nights” through September. Taking audiences on a musical journey through the internationally renowned star’s life in film and music, the production features such timeless tracks as “Physical,” “Xanadu” and the show’s namesake number. Audiences never know who might join Newton-John onstage when she performs “Summer Nights.” In recent months, she’s sung the song with fellow “Grease” stars Didi Conn (Frenchy), Barry Pearl (Doody) and Kelly Ward (Putzie). Looks like even her former co-stars are hopelessly devoted to her!

Donny & Marie Showroom, Flamingo Las Vegas 3555 Las Vegas Blvd. South 702.777.2782 From $70; Meet-and-greet $350 www.flamingolasvegas.com