The celebrities must become the welcoming party for the P&O cruise liner The Pacific Jewel. They must take charge of the turnaround service as well as create a welcome show and perform it for a live audience of new passengers.

The four finalists are chalenged to develop a song that could be used to raise money for charity. They are split into two teams and have to work on a demo track. Once completed, Mark will choose the winning team, firing the other two contestants.