$55: Overpair on paired board facing an All-in

[AA suited]

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (9 handed) FTR converter on zerodivide.cx

MP2 (t770)
MP3 (t1000)
HERO (t975)
Button (t960)
SB (t2170)
BB (t900)
UTG (t1000)
UTG+1 (t1000)
MP1 (t1225)

Preflop: HERO is CO with J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img].
2 folds</font>, MP1 raises to t30</font>, 1 fold</font>, MP3 calls t30, HERO calls t30, 2 folds</font>, BB calls t15.

Flop: (t127.50) 4[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img] (4 players)</font>
BB checks, MP1 checks, MP1 folds, MP3 All-in, HERO ? [img]/images/graemlins/confused.gif[/img]

No Reads.

What would you do, and why?