On Tuesday, July 1, actor Ian Ziering made a guest appearance in Olivia Newton-John’s Summer Nights show at Flamingo Las Vegas (Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net).
Ian Ziering, of Sharknado and 90210, is also performing in Chippendales at The Rio All-Suite Hotel through July 20.

Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage / www.DeniseTruscello.net.