Gerard Butler Sports a New 'Do - A Mullet!

Scottish actor Gerard Butler arrives at the Artists for Haiti Benefit, hosted by Olivia Wilde and Artists for Peace and Justice, to raise funds for immediate aid going to the victims of the Haiti Earthquake at Track 16 Gallery in Santa Monica, Calif., on Thursday, Jan. 28, 2010. <br><br><a style="font-weight: bold;" href="" class="linkIcon photo">Photos: Haiti Telethon on Stage </a> <br style="font-weight: bold;"><a style="font-weight: bold;" href="" class="linkIcon photo">Photos: Stars Answer the Phones</a>
AP Photo/Danny Moloshok
Gerard Butler on Jan. 28, 2010. (AP Photo/Danny Moloshok)

NEW YORK (CBS) Gerard Butler is looking a lot like Billy Ray Cyrus these days.

The "300" actor was spotted with a mullet as he shot scenes in Detroit for his role in the upcoming thriller "Machine Gun Preacher." (You can see the photo here.)

PICTURES: Stars with Mullets

He completed his greasy bad boy biker look with a wallet chain, a Harley Davidson shirt and a leather vest.

In the Marc Foster directed flick, Butler, 40, will be playing the role of Sam Childers, a former drug-dealer turned preacher who later becomes a crusader for hundreds of Sudanese children.

"Machine Gun Preacher"  will be due in theaters September 2011.