Joey Lawrence -- Whoa, I'm a Stripper!

Joey Lawrence is taking it all off ... or most of it at least ... because the 90s heartthrob just inked a deal with the man-stripper crew at Chippendales in Vegas.

A rep for the beefcake brigade tells TMZ, the 36-year-old former "Blossom" star will don the legendary bow tie ... and not much else ... for a special engagement at the Rio from June 7th-24th.

We're told Joey will sing, dance ... the "whole nine yards."

Joey's celebrity MC predecessors at the famed strip show include 98 Degrees singer Jeff Timmons and former "Bachelor" star Jake Pavelka.

It's unclear how much Lawrence is getting paid for the gig -- but in those parts, there's only one currency ... singles.