Grand Theft Auto: Vice City

"Publicity Tour" is the third and final mission given to you by Love Fist from their recording studio in Downtown Vice City. The missions for Love Fist become available once you have completed the story mission "Rub Out". Once available they are represented on the map by the following symbol:

Below is a walkthrough of the mission:

During this mission you need to drive Love Fist around in their limo whilst they defuse a bomb in the back seat. The twist is that you can’t drop your speed to low or the bomb will go off causing the limo to explode and you failing the mission. It takes Love Fist 01:50 to defuse the bomb. The easiest way is to stick to the main roads to drive fast and avoid traffic. Be sure to watch the meter in the top right corner of the screen, because once it is full then the bomb will detonate. Once Love Fist defuse the bomb, you need to deliver them to their gig and then the mission is complete and the trophy will unlock.