In the hierarchy of teen pop stars making the jump from kid-friendly cash cow to mainstream pop mega-cash cow, Miranda Cosgrove is a notch below Selena Gomez and several below poor old Miley. But Cosgrove is a rising star indeed thanks to a pair of Nickelodeon shows called "Drake & Josh" and "iCarly."

In the hierarchy of teen pop stars making the jump from kid-friendly cash cow to mainstream pop mega-cash cow, Miranda Cosgrove is a notch below Selena Gomez and several below poor old Miley. But Cosgrove is a rising star indeed thanks to a pair of Nickelodeon shows called "Drake & Josh" and "iCarly."

Now comes the slightly sexed-up breakthrough LP "High Maintenance," complete with faux-controversial inclusion of the word "asses" in the first verse of the title track not-so-subtly indicating, "Enough with the kid stuff."

Greyson Chance, the boy who became famous on YouTube by playing Lady Gaga on piano, will open the show.