I'd get it even if it had Bieber on the cover, because that means there would be a Bieber sim to download like the Katy Perry sim.
I've looked further into the items included, and I will still get it, even with a candy-cane bike. I loved the Alice in Wonderland themed stuff at the store which is the definition of silly, and look forward to decorating rooms or parks with this SP stuff.
Smart business move for EA and Katy.