02/10/2012 AT 06:00 AM EST
bought three tickets to Madame Tussauds Hollywood for himself and two friends, bought some popcorn and soda for the group, then checked out all the celebrity wax figures inside the museum. But he also got the rock star treatment: The teen star
and his pals got a behind-the-scenes tour of the studio where the artists sculpt the celebrity wax figures.
Bieber, whose own wax figure is being readied for his 18th birthday, chatted with the studio manager and took an early look at the first photos of the clay head mold for his figure (see photo). A source tells us Bieber was more than happy with the progress. His assessment? "Very cool," he said, according to the source. – Kristin Boehm