"I really care about how much proof of my life I can leave behind; how many concerts I can give and how many photos I can have taken," admits Japanese celebrity Shoko Nakagawa, better known to her legion of fans worldwide as Shokotan. "I'm just afraid to have any free time and I'm scared of doing nothing."

It's been a typical day in the life of Shokotan. So far, the 23-year-old Tokyoite has participated in a photo shoot for a fashion magazine, filmed a musical number for a TV show and updated her blog numerous times via cell phone. Forget about dinner. After frequent wardrobe changes and whirlwind visits from hair and makeup staff, evening sets in with a round of press interviews at Sony Music headquarters in Ichigaya.

The constant grind of a pace like this might make lesser talents come down with a case of showbiz-induced "exhaustion," but it seems to sit just right with Nakagawa.