Motley Crue bassist Nikki Sixx's longtime girlfriend Courtney Bingham is reportedly planning to treat the rocker and the band's fans to a special burlesque show -- and it's not even his birthday.

According to TMZ, Bingham, who turns 27 on Sept. 5, will celebrate the big day by performing a striptease as the band performs 'Girls, Girls, Girls' at the DTE Energy Music Theatre in Clarkson, Mich. You can see photos of what she apparently plans to wear at the big event right here.

Sixx and Bingham have been dating since 2010 and clearly are not in any boring "settling down" phase yet. Sixx has been out on the road all summer along with his Crue bandmates on a co-headlining tour with Kiss. If he hasn't gotten her a present yet, maybe a t-shirt bundle featuring the artwork from the band's new single 'Sex' (and of course, a condom) from the band's official store would be in order.