(Video still via YouTube @Megz237)

Jordan Knight of New Kids on the Block is no kid — he's 47 — but he's still very much on the block, and he wants to be sure you never forget it.

Suffer!

The by-far-cutest member of the '90s boy band, whose members are currently touring their asses off for big dollars, erotically tugs his shirt up during the band's perf of “Hard (Not Luvin U)” from their CD Thankful, doing a very gay boogie before dropping down for some Chippendales-worthy stage-humping.

The stage later went on Maury to prove Jordan was its baby daddy.

Watch his whole sexy routine after the jump ...