What the hell? Should I call this massive overbet with AA?

[arod15]

UB 2-4 NL
Hero is MP with A [img]/images/graemlins/spade.gif[/img]A [img]/images/graemlins/diamond.gif[/img]
UTG+1 raises to 12 I min raise to 24

MP+1 calls 24
CO calls 24
Button calls 24
UTG+1 calls 24

Pot is 126
Flop is 7 [img]/images/graemlins/diamond.gif[/img]8 [img]/images/graemlins/diamond.gif[/img]2 [img]/images/graemlins/heart.gif[/img]
Check to me I bet 150
I have 1500 behind
All fold to Button who has 900
He pushes, 750 for me to call

Whats my plan?

Villian has been supper aggressive playing a lot of pots
Hasnt gotten out of line with me yet. I have a rockish image

Whats the plan?