Ian Ziering is 49 and fine!

The former "Beverly Hills, 90210" stud showed off his surprisingly buff bod during a CrossFit training session on Thursday in Studio City.

The actor is currently preparing for his upcoming stint with Chippendales. Ian will hit the stage at the Rio in Las Vegas through June and will definitely be showing some skin.

Looks like he doesn't have too much to worry about does he? Lookin' good, Steve Sanders!