KQ in SB in late stages

[Toro]

Pokerstars $11 + 1 rebuy + 1 addd-on tourney with approximately 500 starters and we are now down to 15 players. Villian is in the BB and has been active and aggressive.

He is chip leader and has shown down JTs that he tried to steal with but had to call when shorty didn't have enough to make him fold. It is folded to me in the SB.

PokerStars No-Limit Hold'em Tourney, Big Blind is t5000 (7 handed) internettexasholdem.com

UTG (t147082)
MP1 (t158472)
MP2 (t162446)
CO (t138871)
Button (t101927)
Hero (t144578)
BB (t245440)

Preflop: Hero is SB with Q[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">5 folds</font>

What is the play?