Any Hot Steppin' event works, you just have to get a perfect score (All Pimpin') in it. When getting ready to pimp Marcia's car (the first car), look for the green dots on the map. When you get close to them, you will see what looks like a big green equalizer display, drive into it and press . One is a Hot Steppin' event and the other is a Ghost Ride (see above). To get the achievement, you have to press A when the indicator is on the bright yellow part of the display at the bottom of the screen. Pretty easy, just a timing issue. If you don't get it perfect the first time, you get the option of re-doing it at the summary screen.